How to Build a Mass Save–Ready Heat Pump Proposal

A useful proposal lets the homeowner explain the project back to you. Organize it around three questions:

1. What does my home need? Show the areas being served, the calculated heating demand, and why you selected the equipment.
2. Which program path are we proposing? Name the potential rebate category and the project assumptions that need verification.
3. What am I paying, and when? Separate the contract price, potential rebate, proposed financing, and payment schedule.

Put this summary near the front. Keep model schedules, detailed scope, and supporting calculations available behind it. The summary and attachments should describe the same equipment and price.

Give every version a date or revision number. When equipment or scope changes, update the design explanation, program assumptions, and investment summary together. A revised price beside an old equipment schedule makes the homeowner do your reconciliation work.

Make the design condition visible

Use the same area names throughout the proposal: main floor, upper floor, or the actual zones you are serving. Beside each one, show the calculated heating load in BTU/h and the outdoor design temperature used. If weatherization changes the design inputs, make that assumption visible too.

A homeowner-facing diagram can summarize the calculation, but it cannot replace the underlying design work. Keep the complete calculation with the project record so another member of your team can trace the numbers.

Compare output at the same outdoor condition

Beside the heating need, show the selected system's heating output at that condition using the appropriate manufacturer performance data. Identify the equipment combination and the source of its rating. A nominal system-size label does not communicate that comparison.

Explain any backup heat or distribution limitations in ordinary language. A whole-home total alone does not explain how a difficult room will be served. Your team still owns sizing, equipment selection, airflow, and installation design.

The illustration below demonstrates the presentation, using invented values rather than a specified product. Its bars do not establish equipment suitability or program compliance.

Mass Save's questions for installers encourage homeowners to ask about load calculations, equipment placement, and controls. Those are useful prompts for the conversation your proposal supports.

Use the following map to start the conversation, then verify the project against the current Mass Save air-source heat pump requirements. It is not an eligibility decision.

For a whole-home proposal, document how the system serves the entire conditioned home. The 2026 verification form requires equipment sized for 90–120% of the total heating load at the outdoor design temperature across all conditioned space. It also requires sufficient weatherization and full-time winter occupancy. The displaced heating system must be removed or disconnected; if retained for domestic hot water, its space-heating function must be disabled. Both the customer and installer sign the form. Do not describe a retained fossil-fuel backup arrangement as whole-home without resolving those requirements.

For partial-home, identify any retained heating system and the zones it serves. Qualified integrated controls are required where fossil heating remains in use, subject to the program's stated exceptions. Sizing and weatherization bonuses have separate conditions. Basic applies to eligible projects that do not displace fossil-fuel or electric-resistance heat, such as certain replacements or additions. Check the current pathways and exceptions.

On the proposal, list the proposed path, existing heat source, equipment eligibility, and items still awaiting confirmation. Check income-based options before treating the standard incentive as the homeowner's only possibility.

Prefer wording such as “Potential rebate, subject to the stated project assumptions and program approval.” Give the homeowner the next verification step and name who owns it. Keep a dated copy of the rule or form used in your project file.

Explain the sequence before the monthly number

The current HEAT Loan page describes 0% financing for eligible improvements. The homeowner applies, receives an Authorization Form for eligible work, and then seeks lender approval. A Home Energy Assessment is mandatory for whole-home heat pumps and partial-home projects pursuing bonus incentives.

Official Mass Save sources reviewed on September 24, 2026 do not agree on a universal ceiling: the live residential page and lender guidance state $25,000, while the currently linked HEAT Loan guide describes up to $50,000 for qualifying heat-pump or electrification work. Confirm the project limit with Mass Save and the participating lender instead of carrying either figure into a proposal as a guaranteed maximum.

Show the application steps beside the estimate. A proposal is not an authorization, and an authorization is not a credit approval. Mass Save's HEAT Loan FAQ says work already installed cannot be financed through a new application. Coordinate authorization and lending before installation.

Make the assumptions easy to check

Show the full contract price first. Then identify the potential incentive, the amount assumed eligible for financing, the APR, the number of monthly payments, and the resulting estimate. At zero interest, dividing the financed principal by the payment count gives the example monthly principal payment.

The lender guidance says applicable Mass Save incentives are deducted when determining the eligible financed amount. It currently lists a maximum seven-year term, but that does not mean every homeowner receives that term. Use the lender-confirmed amount and term for an actual quote.

Do not confuse net project cost with cash due on installation day. State the deposit, progress payments, expected rebate payee, and responsibility for the amount awaiting reimbursement. Avoid making the homeowner infer that a future rebate is already cash in hand.

Label the monthly figure as a loan-payment estimate, excluding energy bills and maintenance. It is not an operating-cost forecast or a promise of savings.

Use this as an office review checklist before sending the packet. Keep required documentation separate from presentation choices that help a homeowner understand the project.

Intake documentation to confirm

The Mass Save financing page calls for a signed proposal on contractor letterhead. The HEAT Loan packet's heat-pump checklist, page 6 identifies the following supporting details:

• A signed proposal from a participating heat-pump installer.
• Equipment maker and model identifiers.
• The work included and its price.
• Installed cost for each individual heat-pump system.
• The matching AHRI certificate or its reference number.

The packet remains useful for this checklist, but its older financial tables conflict with the live program pages. Reconfirm the current intake requirements when preparing a real application; do not copy its older loan ceiling or rebate table into your quote.

Program checks for the project file

For standard 2026 whole-home and partial-home applications, the current rebate form calls for an HPIN installer, listed equipment, installation during 2026, and supporting documents by February 28, 2027. Verify the homeowner's participating utility and existing heating fuel as well. Record the matched system's qualified-product listing and AHRI cooling capacity used for rebate tonnage. The live eligibility page also specifies ENERGY STAR Cold Climate equipment. Check the applicable form if pursuing a different offer.

Proposal clarity checks

• Match the customer, installation address, revision, and equipment across all attachments.
• Explain included electrical work, removals, controls, permits, and any exclusions.
• Use one area naming system for the load summary and equipment schedule.
• State the proposed rebate path, outstanding checks, and responsible person.
• Put financing assumptions and approval conditions beside the payment estimate.
• For multiple systems, show individual installed costs and a reconciled project total.
• Attach or reference the technical calculation without burying the homeowner summary.

Choose one team member to perform the final cross-check. Reading the summary and equipment schedule together is more useful than checking each file in isolation.

This fictional example shows the layout and arithmetic, not a typical installation price, an equipment recommendation, or an approval. Assumptions are dated September 23, 2026.

Assume a $20,000 eligible project and equipment totaling 2.0 rebate tons. Mass Save's 2026 whole-home rate is $2,650 per ton, capped at $8,500; rebate tons use AHRI cooling capacity divided by 12,000. If the project meets all whole-home requirements, the example potential rebate is 2.0 × $2,650 = $5,300.

Subtracting that potential rebate leaves $14,700. If that amount is authorized and the lender approves 0% financing over 84 months, the example payment is $175 per month. The 84-month term is an assumption, not a universal offer.

The design illustration's invented heating outputs are separate from the rebate-ton calculation. Do not derive AHRI cooling capacity from those bars or use them to select equipment.

In the example, $5,300 still needs to be covered according to the contract's payment arrangements while any rebate is processed. The proposal should say whether the homeowner pays that portion or an agreed rebate-assignment arrangement applies. Do not show $175 per month as the only amount the homeowner must plan for.

Most of this review is about keeping one story consistent across the packet:

• A price without a design explanation. Add the area load summary and explain the equipment choice in a few sentences.
• An incentive shown as a discount already received. Label it potential, list assumptions, and explain payment timing.
• A retained backup system beside a whole-home claim. Resolve the intended heating arrangement and program requirements before naming the path.
• One project total with no per-system costs. Break out each system so the supporting paperwork can be checked.
• A monthly figure without a term or approval condition. Put the assumptions beside the number, including the costs it excludes.
• Different equipment in different attachments. Treat a model substitution as a revision to the whole packet.

Ask a colleague who did not prepare the quote to identify the heating plan, the outstanding program checks, and the homeowner's payment responsibilities. If they need an explanation that is absent from the proposal, add it before sending.

Quote Studio is HomeWise's proposal capability for home energy contractors. It connects heating needs, selected equipment, your pricing, and energy-program information in a proposal your team reviews.

Your team remains responsible for equipment sizing and selection, program verification, and final approval. Use the structure above as the review standard: the design explanation, program assumptions, and investment summary should agree before a proposal goes out.

Does a clear proposal guarantee a rebate or loan?

No. A complete packet helps people review the project, but it does not establish eligibility or credit approval. Keep a separate record of outstanding checks and the person responsible for each one.

Should homeowners compare multiple proposals?

Mass Save recommends proposals from at least two or three contractors. Make yours comparable by spelling out equipment, scope, exclusions, and the heating arrangement. Avoid turning that comparison into a promise that your price or system will be best for every home.

Should I show a potential rebate before approval?

You can present a planning assumption if its conditional status is unmistakable. Keep the full price visible, explain what still needs verification, and show how a different outcome would affect the homeowner's responsibilities. Do not label the estimate “approved.”

Should the homeowner receive the full load calculation?

Keep a readable summary in the proposal and retain the full calculation with the project. Supply technical documentation when required or requested. The whole-home verification form notes that sizing documentation may be requested; the homeowner summary does not replace it.

What if the official documents disagree?

Pause the affected claim and resolve it with the program or lender before issuing the quote. As of September 24, 2026, official Mass Save pages conflict on the HEAT Loan ceiling, so this guide does not treat either amount as a universal promise. Record the source and date so your next revision starts from the same evidence.