Is Your HVAC System the Right Size for Your Home?
Massachusetts requires a Manual J load calculation for many HVAC permits.In practice, it’s often completed quickly — as a formality — and rarely verified against the actual home.
Quoting an HVAC system moves fast.A proper room-by-room calculation takes real time — more than most pre-sale estimates allow for. So equipment often gets sized using rules of thumb and past experience, not a calculation specific to your home.
That gap matters more now than it used to.Newer homes are better insulated and sealed, so the old tonnage rules no longer apply — oversized equipment is increasingly common. You feel the result in higher utility bills and poor humidity control.
Right Size Analytics closes that gap.I deliver an independent, ACCA-standard load calculation before you get quotes or commit to equipment.
What Happens When Your HVAC Is the Wrong Size?
Oversized = Uncomfortable
An oversized system short-cycles — it blasts cold or heat, shuts off, and repeats. The result is uneven temperatures, humidity problems, and accelerated equipment wear.
Undersized = Overworked
An undersized system runs continuously, struggles to reach setpoint on extreme days, and drives up energy costs every month.
Rules of Thumb Are a Persistent Industry Practice
Manual J calculations are time-intensive and fall outside the scope of most pre-sale estimates. Sizing based on square footage or prior experience is common across the industry — it's a structural feature of how projects get quoted, not a reflection of individual quality.
"A Manual J load calculation is the only ACCA-approved method for accurately sizing residential HVAC systems — and it's not always part of the standard installation process."
Source: Air Conditioning Contractors of America (ACCA)
What Right Size Analytics Delivers
Right Size Analytics is an independent HVAC load calculation consulting service. I don't sell equipment and have no financial stake in what brand or model gets installed.
I calculate the heating and cooling load your home requires using ACCA Manual J standards — the recognized methodology for residential load analysis — and deliver a professional report ready for use in the quoting process.
Every contractor quoting your project works from the same technical baseline. Equipment specifications are grounded in your home's actual load, not estimated from square footage or prior experience.
- Full Manual J load calculation report
- Room-by-room heating & cooling analysis
- Equipment sizing recommendations
- Report formatted for direct use in quoting
- Independent — no equipment sales affiliation
- Valid for Massachusetts MassSave rebate documentation
A Common Technical Baseline for Every Quote
When every contractor is working from the same load calculation, quotes reflect installation quality and scope — not differing assumptions about equipment size.
Consistent Scope Across Quotes
Every contractor quotes against the same system specification. Price differences reflect labor, materials, and installation quality — not different assumptions about equipment size.
Documentation for State Rebates
Massachusetts MassSave and Inflation Reduction Act (IRA) rebates often require proper load calculation documentation. A Right Size Analytics report satisfies that requirement.
Cost-Effective Due Diligence
A load calculation consultation is a fraction of what a mismatched system costs over its service life in energy waste, comfort issues, and early replacement.
Massachusetts Rebates Require the Documentation
Massachusetts offers significant rebates on heat pumps and high-efficiency HVAC systems through MassSave and related programs. Proper load calculation documentation is required for rebate qualification in many cases.
A Right Size Analytics Manual J report provides the technical documentation your utility or rebate program requires, while also confirming that the specified equipment is correctly matched to the home.
Right Size Analytics serves projects across Massachusetts.
MA Rebate Resources
- MassSave Program Overview
- Mass Save Heat Pump Rebates
- Inflation Reduction Act Home Energy Credits
- ACCA Manual J Overview
Links open in a new tab. Right Size Analytics has no affiliation with the above programs or organizations.
How It Works
Book a Free Intro Call
We review your project, current system, and goals — and confirm whether a load calculation is the right next step.
Share Your Home Details
You provide basic information: square footage by room, construction type, window count and orientation, insulation, and location.
I Run the Manual J Analysis
Using ACCA-certified methodology, I calculate your home's heating and cooling loads — room by room.
Receive Your Report
You receive a professional Manual J load calculation report, ready to use in the quoting process with any contractor.
Simple, Transparent Pricing
One-time fees. No recurring charges. No upsells. No equipment referral fees.
Tier 1
Essentials
$250
One-time fee
- Initial discovery call (30 min)
- Full Manual J load calculation
- Room-by-room analysis
- Professional report (PDF delivery)
- One revision round included
- Email support through the process
Tier 2
Guided
$450
One-time fee
- Everything in Essentials, plus:
- On-site home visit and data collection*
- Extended consultation during the visit
*In-person visits available within a 40-mile radius of Greater Boston. Travel fees may apply for extended distances.
Book Your ConsultationTier 3
Comprehensive
$950
One-time fee
- Everything in Guided, plus:
- ACCA Manual S (Equipment Selection)
- ACCA Manual D (Duct Design)
Massachusetts MassSave participants: confirm documentation requirements with your specific rebate program.
Ready to Get Started? Book a Free Intro Call.
A straightforward 15-minute call to review your project and confirm whether a Manual J consultation fits your timeline and scope.
Prefer email? Reach us at [email protected] | Serving all of Massachusetts
About Right Size Analytics
Right Size Analytics was founded on a straightforward premise: a proper load calculation should be part of every HVAC project — and it's most useful when it's done independently, before equipment is selected or contracts are signed.
I'm an independent HVAC load calculation consultant serving Massachusetts. I use ACCA Manual J — the standard referenced in building codes and recognized by utility rebate programs — to calculate what a home actually requires.
I don't sell equipment. I don't get referral fees. The analysis stands on its own.
Right Size Analytics is a DBA of Shuttlewire LLC.