Rebate-ready load calculations

Manual J for your heat pump rebate.

Many utility heat pump rebates need a Manual J and Manual S sizing: NYS Clean Heat, PSEG Long Island, the Mass Save sizing bonus and others. Rebate-ready Manual J, S and D for $100 per house.

  • J + S + D for $100
  • Permit-ready PDF
  • 2–3 business days
  • No subscription
Builder and contractor reviewing construction plans
Manual J + S + D · $100 per house

Free quote confirmation, no account needed. You pay per house, no subscription.

Why rebate programs ask for Manual J

Heat pump rebates pay for equipment that is sized to the house. To check that, several programs ask the installing contractor for an ACCA Manual J load calculation and a Manual S equipment selection based on the manufacturer's extended performance data at the local design temperature.

NYS Clean Heat (New York)

The NYS Clean Heat load calculation guidance requires calculations in accordance with ACCA Manual J for residential projects and equipment sizing per ACCA Manual S using extended performance tables. Full-load systems must cover at least 100% of the design heating load, with the outdoor design temperature close to the program default.

PSEG Long Island Home Comfort

PSEG Long Island states that Manual J is required for participation in its Home Comfort program. Whole-house air-source heat pump systems must meet 90 to 120% of the heating load.

Mass Save (Massachusetts)

For the partial-home sizing bonus, Mass Save asks for Manual J load calculation documentation showing the equipment meets 90 to 120% of the total heating load at the outdoor design temperature.

Other programs

Rhode Island Energy forms have asked for a Manual J on central systems, Xcel Energy Colorado ducted heat pump rebates reference Manual J and S, and Efficiency Maine accepts approved load calculation software among other methods. Rules change every program year: always check the current program manual.

How Loadpol helps installers

Send the house data or plans and the planned heat pump. We return Manual J, Manual S against the manufacturer data and, if needed, Manual D as one PDF you can attach to the rebate application, sized to the program's rule. $100 per house for all three, 2 to 3 business days. Contractors with steady volume can choose the business partnership: $1,000 per month for up to 10 calculations.

Last reviewed November 2026. Code sections refer to the International Residential Code and International Energy Conservation Code; local amendments may apply.

Pricing

J, S & D for $100. All three.

One price for every builder and every contractor, from the first house. No subscription, no software license, no minimum order.

Full permit set

Manual J + S + D

$100 / house

All three reports for one house, matched to each other, in one PDF package.

Order for $100
Load calculation

Manual J

✓ included

Room-by-room heating and cooling loads (sensible and latent) to ACCA Manual J 8th Edition.

Equipment selection

Manual S

✓ included

Checks the furnace, heat pump or AC you plan against the Manual J loads and manufacturer data.

Duct design

Manual D

✓ included

Duct sizing per room: airflow (CFM), supply and return sizes, friction rate and static pressure.

$100 per dwelling unit for all three reports, also if you need only one of them. Confirmed before we start. Unusual projects (very large custom homes, more than two systems) are quoted first.

What you get

A report your plan reviewer recognizes.

Every report is built from your actual plans, and delivered as one PDF you can upload with the permit application.

Room by roomHeating, sensible and latent cooling load and airflow for every room.
Code referencesPrepared to ACCA Manual J 8th Edition, Manual S and Manual D.
Matched equipmentManual S check against manufacturer data for the unit you plan.
Duct sizesManual D supply and return sizes, friction rate and static pressure.

Example screen with sample numbers (heating / cooling Btu/h per room). Your report uses your plans.

FAQ

Manual J for Heat Pump Rebates: answered.

Do you submit the rebate for us?

No. The installing contractor submits the rebate application. We deliver the load calculation and equipment check the program asks for.

Can you size to 90 to 120% of the heating load?

Yes. Manual S shows the heat pump capacity at the design temperature against the Manual J heating load, so you can see the percentage the program checks.

How much does a Manual J cost?

$100 per house for Manual J, Manual S and Manual D together. No subscription and no minimum order.

How fast do I get the report?

Usually 2–3 business days after we receive complete plans and specs.

Will the building department accept it?

Reports follow ACCA Manual J 8th Edition, Manual S and Manual D and use the plans you send. Acceptance is up to your building department; if plan review asks for corrections to our report, we revise it at no charge.

Order J + S + D · $100 →