San Jose Heat Pump HVAC Decision Pack
Heat Pump HVAC
2,000 sq ft · built ~1985 · gas furnace (~20 years old) · gas tank water heater · 1 EV today, 2 planned · 150A panel
What this pack covers
This Decision Pack covers Heat Pump HVAC in San Jose, CA.
It assembles cost ranges, incentive eligibility, permit requirements, and the questions to ask before signing a contract. Every dollar figure and incentive shown is dated and sourced.
Your goal in one sentence
Replace an aging gas furnace and central AC with a single heat pump HVAC system, sized via Manual J for San Jose's mild climate and the home's future electric load, with confirmed permit and incentive paths verified before signing.
Recommended sequence
- Heat Pump HVAC — No prerequisites within this pack.
Who to contact
| Who | Why | What to ask for |
|---|---|---|
| Electrification-focused HVAC contractor | Designs the heat pump HVAC system and handles ducting, load calculations, rebates, and permits. | Gas furnace to central heat pump conversion, Manual J load calculation, duct assessment, rebate handling. |
| Licensed electrician | Validates panel/service capacity for future electric load; recommends panel upgrade vs smart load management. | Panel size, service size, formal load calculation, upgrade vs load-management options. |
Opening script to send contractors
Hi, I'm in San Jose, CA and planning a project that includes Heat Pump HVAC. Home details: - About 2,000 sq ft - Built around 1985 - Existing heating: gas furnace (~20 years old) - Existing water heater: gas tank water heater - EVs: 1 today, 2 planned - Electrical panel: 150A I am looking for a quote that includes: 1. Heat Pump HVAC Please tell me: - Will you perform a formal load calculation (Manual J for HVAC, Article 220 for electrical)? - Are you familiar with San Jose permits and any local rebate programs? - Can you give line-item pricing and separate confirmed incentives from assumed incentives? - Who handles permits, inspections, and rebate paperwork?
Technical basics in plain English
Panel size: 100A, 125A, 150A, 200A
Your electrical panel is the main entry point for electricity into your house. The 'A' means amps. More amps means more total electrical capacity. 100A is older and may not support adding heat pump + water heater + EV charger together without an upgrade or smart load management. 125A/150A is middle ground; could work with efficient equipment and a real load calculation. 200A is usually the cleanest path, but not guaranteed.
Ask: What is my panel size, and can you show me the load calculation that proves this setup is safe?
Load calculation
A load calculation is not the same as guessing. It is a code-based calculation that estimates whether your panel and service can safely carry all major electrical loads. A qualified electrician or contractor should be able to explain whether you need a panel upgrade, a service upgrade, or smart load management instead.
Ask: Are you doing a formal electrical load calculation, or just eyeballing the panel?
120V vs 240V
Normal outlets are usually 120V. Large appliances often use 240V, like a dryer or EV charger. Many heat pump HVAC systems, EV chargers, and some water heaters need 240V.
Ask: Which parts of this project require 240V?
Manual J load calculation (HVAC)
Manual J is the standard HVAC sizing calculation. It accounts for home size, insulation, windows, orientation, and ductwork. A good HVAC contractor performs Manual J before sizing the equipment; bad contractors just match the existing furnace tonnage.
Ask: Will you perform a Manual J load calculation before sizing the equipment?
Specific questions to ask
Questions for HVAC contractors
| Question | Good response | Bad response |
|---|---|---|
| Will you perform a Manual J load calculation before sizing the heat pump? | Yes. We calculate heating and cooling load based on home size, insulation, windows, orientation, ductwork, and infiltration. | We just replace the existing furnace with the same tonnage system. |
| Will you inspect ducts before specifying the heat pump? | Yes. We inspect duct size, leakage rate, return air paths, and airflow because heat pumps need good airflow at moderate static pressure. | Ducts are always fine; no need to check. |
| How do you decide system size in tons or BTU? | We explain tons and BTU using Manual J inputs, not just square footage. | We use 1 ton per 500 square feet as a rule of thumb. |
| Will the heat pump cover both heating and cooling, and do we need backup heat? | Yes, a central heat pump provides both. We explain whether backup electric resistance heat is recommended for San Jose's mild winters. | Cooling is a separate system. |
| What refrigerant does the system use, and is it compliant with current EPA rules? | We specify the refrigerant (R-454B or R-32 for new systems after the EPA A2L transition) and confirm it meets current code. | Refrigerant does not affect homeowners. |
| What is the outdoor unit noise rating, and where will it be located? | We provide the published decibel rating, propose an installation location that meets San Jose's noise ordinance, and account for setback to property lines. | Heat pumps are quiet enough to put anywhere. |
| How will the heat pump perform during the coldest week of the year in San Jose? | We use the published HSPF2 or COP at the local design temperature (~41F for San Jose, the ASHRAE 99 percent heating design temperature), and confirm the system maintains capacity without significant backup heat usage during typical cold spells. | Heat pumps work fine in California. |
| Are you familiar with San Jose Clean Energy (SJCE) EcoHome rebates and how to coordinate them? | Yes, we may help homeowners apply for SJCE EcoHome rebates and confirm program availability before installation. | All rebates are guaranteed; we will get them for you. |
| Are you a TECH Clean California enrolled contractor, and is the program currently funded for heat pump HVAC? | We verify current TECH Clean California program status (single-family Phase I has been fully reserved since November 2025) and explain whether it applies before signing. | TECH always pays out; assume the rebate is yours. |
| Does my household income make us eligible for HEEHRA, and what does that involve? | We confirm income eligibility (below 80 percent AMI or 80 to 150 percent AMI), explain pre-approval is required, and verify program status (Phase I single-family is currently fully reserved per CEC as of 2026-02-24). | HEEHRA covers everyone; you qualify automatically. |
Questions for electricians
| Question | Good response | Bad response |
|---|---|---|
| What is my panel size and service size, and is it adequate for adding a heat pump? | We inspect the panel labels and main breaker on site, explain whether 100A, 125A, 150A, or 200A is adequate, and verify the service drop matches the panel. | We guess from a photo only; no on-site inspection. |
| Can we avoid a service upgrade by using smart load management? | Possibly. We will perform a formal Article 220 load calculation, propose smart load management for HVAC + EV + water heater coordination, and explain the tradeoff vs upgrading. | You always need 200A; no calculation needed. |
| Will the heat pump need a new dedicated circuit, and what breaker size? | Yes, the outdoor unit and air handler each typically need dedicated circuits at the breaker sizes the manufacturer specifies (often 30-50A for outdoor, 15-30A for indoor). | Any spare breaker will work. |
| Will you pull the electrical permit, or do I need to? | We pull the electrical permit through SJPermits.org and coordinate with the mechanical permit; we itemize the fees in the quote. | You can do it without a permit. |
General questions for every contractor
| Question | Good response | Bad response |
|---|---|---|
| What permits does this installation require in San Jose? | A mechanical permit through SJPermits.org is required; an electrical permit is also required when a new dedicated circuit or panel work is involved. We handle both. | Heat pump installs don't need permits in California. |
| Can you separate confirmed incentives from assumed incentives in the quote? | Yes. We mark each incentive as confirmed (with program ID and current reservation status) versus assumed (subject to verification before contract). | All listed incentives are yours. |
| Does the federal Section 25C tax credit apply to my installation? | Section 25C expired December 31, 2025 under the One Big Beautiful Bill Act (Public Law 119-21). Installations completed in 2026 or later do not qualify for §25C. | You'll get the federal credit on your taxes. |
| Are BayREN Home+ rebates available for this installation? | BayREN Home+ may apply for Bay Area homeowners; we verify the program is currently funded and that the equipment qualifies before submitting. | BayREN always pays out automatically. |
| What is the equipment and labor warranty, and what voids it? | We provide the manufacturer warranty (typically 10 years parts when registered) plus our labor warranty (1-2 years standard); we explain what voids coverage including improper electrical, missing filters, and skipped annual service. | The warranty covers everything forever. |
| What is the best next step before signing a contract? | Schedule a site visit and Manual J load calculation, get a written quote with line-item pricing, verify all incentive reservation requirements, and confirm permit handling. | Sign today to lock in pricing before incentives expire. |
Good vs reasonable vs bad answers
| Question | Good | Reasonable | Bad |
|---|---|---|---|
| Will you perform a Manual J load calculation before sizing the heat pump? | Yes. We calculate heating and cooling load based on home size, insulation, windows, orientation, ductwork, and infiltration. | We will run Manual J after a site visit and duct inspection. | We just replace the existing furnace with the same tonnage system. |
| Will you inspect ducts before specifying the heat pump? | Yes. We inspect duct size, leakage rate, return air paths, and airflow because heat pumps need good airflow at moderate static pressure. | We inspect ducts during install and modify if airflow targets are not met. | Ducts are always fine; no need to check. |
| How do you decide system size in tons or BTU? | We explain tons and BTU using Manual J inputs, not just square footage. | — | We use 1 ton per 500 square feet as a rule of thumb. |
| Will the heat pump cover both heating and cooling, and do we need backup heat? | Yes, a central heat pump provides both. We explain whether backup electric resistance heat is recommended for San Jose's mild winters. | — | Cooling is a separate system. |
| What refrigerant does the system use, and is it compliant with current EPA rules? | We specify the refrigerant (R-454B or R-32 for new systems after the EPA A2L transition) and confirm it meets current code. | — | Refrigerant does not affect homeowners. |
| What is the outdoor unit noise rating, and where will it be located? | We provide the published decibel rating, propose an installation location that meets San Jose's noise ordinance, and account for setback to property lines. | — | Heat pumps are quiet enough to put anywhere. |
| How will the heat pump perform during the coldest week of the year in San Jose? | We use the published HSPF2 or COP at the local design temperature (~41F for San Jose, the ASHRAE 99 percent heating design temperature), and confirm the system maintains capacity without significant backup heat usage during typical cold spells. | — | Heat pumps work fine in California. |
| Are you familiar with San Jose Clean Energy (SJCE) EcoHome rebates and how to coordinate them? | Yes, we may help homeowners apply for SJCE EcoHome rebates and confirm program availability before installation. | — | All rebates are guaranteed; we will get them for you. |
| Are you a TECH Clean California enrolled contractor, and is the program currently funded for heat pump HVAC? | We verify current TECH Clean California program status (single-family Phase I has been fully reserved since November 2025) and explain whether it applies before signing. | — | TECH always pays out; assume the rebate is yours. |
| Does my household income make us eligible for HEEHRA, and what does that involve? | We confirm income eligibility (below 80 percent AMI or 80 to 150 percent AMI), explain pre-approval is required, and verify program status (Phase I single-family is currently fully reserved per CEC as of 2026-02-24). | HEEHRA may apply if eligibility is verified after a site visit and income documentation. | HEEHRA covers everyone; you qualify automatically. |
| What is my panel size and service size, and is it adequate for adding a heat pump? | We inspect the panel labels and main breaker on site, explain whether 100A, 125A, 150A, or 200A is adequate, and verify the service drop matches the panel. | — | We guess from a photo only; no on-site inspection. |
| Can we avoid a service upgrade by using smart load management? | Possibly. We will perform a formal Article 220 load calculation, propose smart load management for HVAC + EV + water heater coordination, and explain the tradeoff vs upgrading. | We need to see your panel labels and load history before recommending. | You always need 200A; no calculation needed. |
| Will the heat pump need a new dedicated circuit, and what breaker size? | Yes, the outdoor unit and air handler each typically need dedicated circuits at the breaker sizes the manufacturer specifies (often 30-50A for outdoor, 15-30A for indoor). | — | Any spare breaker will work. |
| Will you pull the electrical permit, or do I need to? | We pull the electrical permit through SJPermits.org and coordinate with the mechanical permit; we itemize the fees in the quote. | — | You can do it without a permit. |
| What permits does this installation require in San Jose? | A mechanical permit through SJPermits.org is required; an electrical permit is also required when a new dedicated circuit or panel work is involved. We handle both. | — | Heat pump installs don't need permits in California. |
| Can you separate confirmed incentives from assumed incentives in the quote? | Yes. We mark each incentive as confirmed (with program ID and current reservation status) versus assumed (subject to verification before contract). | — | All listed incentives are yours. |
| Does the federal Section 25C tax credit apply to my installation? | Section 25C expired December 31, 2025 under the One Big Beautiful Bill Act (Public Law 119-21). Installations completed in 2026 or later do not qualify for §25C. | — | You'll get the federal credit on your taxes. |
| Are BayREN Home+ rebates available for this installation? | BayREN Home+ may apply for Bay Area homeowners; we verify the program is currently funded and that the equipment qualifies before submitting. | — | BayREN always pays out automatically. |
| What is the equipment and labor warranty, and what voids it? | We provide the manufacturer warranty (typically 10 years parts when registered) plus our labor warranty (1-2 years standard); we explain what voids coverage including improper electrical, missing filters, and skipped annual service. | — | The warranty covers everything forever. |
| What is the best next step before signing a contract? | Schedule a site visit and Manual J load calculation, get a written quote with line-item pricing, verify all incentive reservation requirements, and confirm permit handling. | — | Sign today to lock in pricing before incentives expire. |
Green flags, reasonable caveats, red flags
Green flags
- Manual J load calculation performed before sizing
- Duct inspection with airflow measurement included
- Outdoor unit decibel rating and location noted with respect to San Jose noise ordinance
- Refrigerant compliance with EPA A2L transition confirmed
- Electrical permit pulled through SJPermits.org alongside mechanical permit
- Incentives separated into confirmed versus assumed with reservation status
Reasonable caveats
- Final sizing depends on site visit and duct assessment
- Some rebate amounts confirm only after reservation is approved
- Refrigerant pricing may shift based on A2L supply availability
- Backup heat sizing depends on building envelope details
Red flags
- Sizes the heat pump from existing furnace tonnage without Manual J
- Promises a §25C federal credit for installations after December 31 2025
- Claims HEEHRA or TECH Clean California rebates as guaranteed without confirming reservation status
- Skips electrical load calculation when adding a dedicated circuit
- Quote does not name who pulls the mechanical permit
Quote checklist
Check every item before signing.
Required
Optional but recommended
Quote comparison worksheet
Print this and fill in by hand, or capture quotes side-by-side as you receive them.
| Line item | Contractor 1 | Contractor 2 | Contractor 3 |
|---|---|---|---|
| Quote includes heat pump HVAC equipment model, capacity (tons / BTU), efficiency ratings (SEER2 / HSPF2), and warranty. (required) | |||
| Quote includes a Manual J load calculation, or commits to performing one before final sizing. (required) | |||
| Quote includes a duct inspection, return-air assessment, and any duct modifications needed. (required) | |||
| Quote includes electrical panel/service assessment and any load-calculation requirements. (required) | |||
| Quote explains whether a panel upgrade, service upgrade, or smart load management is needed. (required) | |||
| Quote separates confirmed incentives from assumed or maybe incentives with reservation requirements noted. (required) | |||
| Quote names who handles permits (SJPermits.org mechanical + electrical), inspections, and rebate applications. (required) | |||
| Quote notes the refrigerant type and confirms it meets current EPA rules (R-454B / R-32 for systems installed after the A2L transition). | |||
| Quote notes outdoor unit noise rating in decibels and the chosen installation location with respect to San Jose noise ordinance setbacks. | |||
| Quote notes the heat pump's published HSPF2 / COP at local design temperature and whether backup heat is required. (required) | |||
| Quote includes a startup / commissioning procedure: charge verification, airflow measurement, static pressure check. | |||
| Quote specifies the labor warranty (in addition to manufacturer parts warranty) and what voids each. |
Incentive verification worksheet
| Program | Amount | Eligibility | Pre-approval? | Confidence | Verified | Source |
|---|---|---|---|---|---|---|
| Section 25C Energy Efficient Home Improvement Credit (heat pumps) | Expired Dec 31, 2025. For 2023–2025: up to $2,000/yr (30% of project cost, capped) for qualifying heat pumps and heat pump water heaters. | EXPIRED: This federal credit ended Dec 31, 2025 under the One Big Beautiful Bill Act (Public Law 119-21, signed July 4, 2025). Installations completed in 2026 or later do not qualify, regardless of when payment was made. For installations completed during 2023–2025, the credit applied to U.S. primary residences with heat pumps or heat pump water heaters that met or exceeded the highest CEE efficiency tier in effect at the start of the install year; starting 2025, the manufacturer's Qualified Manufacturer Identification Number (QMID) was required on the tax return. Homeowners with eligible 2025 installations may still claim the credit on their 2025 federal tax return. Verify with a qualified tax professional. | Verify | high | 2026-05-30 | Internal Revenue Service, Internal Revenue Service, ENERGY STAR (EPA/DOE) |
| California Home Electrification and Appliance Rebates (HEEHRA) — single-family | When available, up to $8,000 (households below 80% AMI) or $4,000 (80–150% AMI) for a qualifying heat pump HVAC system, with additional rebates for heat pump water heaters, electrical panel upgrades, and wiring inside the per-household envelope. Phase I single-family funds are currently fully reserved (waitlist active). | PROGRAM STATUS: Single-family Phase I is FULLY RESERVED statewide as of 2026-02-24 — new single-family applications are not being accepted and a waitlist is in place. Multifamily applications remain open. Phase II is under development pending DOE approval. HEEHRA is California's implementation of the federal IRA Home Electrification and Appliance Rebates program, administered by the California Energy Commission (CEC) with single-family implementation through TECH Clean California. When open, eligibility requires income-qualified single-family homeowners (or landlords with income-qualified tenants) at or below 150% of Area Median Income; income tiers determine rebate amount (below 80% AMI vs 80–150% AMI). Projects must obtain an approved reservation before installation; rebates only apply to heat pumps installed after the reservation is approved. Income verification is required before a contractor can submit a reservation. Replacement of an existing non-heat-pump space heating system is required for the HVAC rebate. Homeowners should check techcleanca.com and the CEC IRA rebate page for re-opening announcements before signing a contract. | Yes | high | 2026-06-08 | California Energy Commission (CEC), California Energy Commission (CEC) / Energy Solutions |
| TECH Clean California — heat pump HVAC incentive (single-family, market-rate) | Currently unavailable: single-family heat pump HVAC incentives are fully reserved as of 2026-05-30. Historical incentive amounts varied by utility service territory and customer income tier — verify against techcleanca.com for re-opening announcements. | PROGRAM STATUS: Single-family heat pump HVAC incentives are FULLY RESERVED as of 2025-11-14 — new single-family reservations are not being accepted. Multifamily program activity continues. TECH Clean California is a statewide CEC initiative administered by Energy Solutions under contract with Southern California Edison on behalf of California utilities under CPUC oversight, designed to accelerate adoption of clean space and water heating. When open, single-family eligibility requires the homeowner to be a customer of a participating California utility, the installation to use an enrolled TECH contractor (1,600+ contractors enrolled statewide), and the project to obtain a reservation before installation. Specific dollar amounts varied by service territory and income tier — refer to techcleanca.com for the next-funded round's amounts and any income-qualified bonus structure. Homeowners should not assume an incentive is available; verify current reservation status with techcleanca.com before signing a contract. | Yes | high | 2026-06-08 | California Energy Commission (CEC) / Energy Solutions, California Energy Commission (CEC) / Energy Solutions |
| California Equitable Building Decarbonization (EBD) Direct Install Program | No-cost direct-install upgrades for income-qualified households — homeowner does not pay out-of-pocket for covered measures. Measures may include heat pump HVAC, heat pump water heater, induction stove, electrical panel upgrade, and weatherization, subject to a per-household scope set by the regional implementer. | Administered by the California Energy Commission (CEC) as the statewide Equitable Building Decarbonization Direct Install Program, with delivery through regional implementers and a separate Tribal Direct Install track. Targets low- and moderate-income households in low-income communities; specific AMI thresholds and per-region eligibility rules are set by the regional implementer rather than statewide. Both single-family homeowners and renters in eligible buildings may qualify, though scope and contractor selection are determined by the implementer (homeowners do not freely choose contractors). The program is funded through California IRA HOMES funding (60% allocation to Direct Install, approximately $130.3M) plus state appropriations. Direct Install retrofits began rolling out in summer 2025. Homeowners interested in EBD should contact the CEC at equitablebuildingdecarb@energy.ca.gov or watch for their regional implementer's launch announcement; the program does not accept open online applications the way TECH or HEEHRA do. | Yes | medium | 2026-05-30 | California Energy Commission (CEC), California Energy Commission (CEC) |
| PG&E Heat Pump HVAC Rebate — current status | Not currently available as a standalone PG&E rebate | As of 2026-05-30 PG&E does not advertise a standalone utility-funded residential heat-pump HVAC rebate on its rebates index. Heat-pump HVAC incentives for PG&E-served homes have flowed through (a) TECH Clean California (single-family fully reserved since November 14, 2025; see ca-tech-heat-pump-hvac), (b) HEEHRA-CA (single-family fully reserved since February 24, 2026; see ca-heehra-single-family), and (c) BayREN Home+ for Bay Area homeowners outside PG&E's direct rebate stack. Homeowners may want to verify with PG&E and check whether any successor utility program has launched. | Verify | high | 2026-05-30 | Pacific Gas & Electric |
Permit verification worksheet
| Permit | Jurisdiction | Applies to | Confidence | Verified | Source |
|---|---|---|---|---|---|
| Mechanical + electrical permit | city | Heat Pump HVAC | high | 2026-05-31 | City of San Jose, City of San Jose |