Guides
HVAC design and selling guides for contractors
Load calculation, equipment selection, heat pump sizing and selling at the table. Written for residential contractors and reviewed by our HVAC design lead.
Coming soon
Oil boiler replacement options for contractorsWhat to offer an oil home: new oil boiler, gas conversion, heat pump or dual-fuel, with cost and rebate factors. Then price it in Tradewright.2 min readComing soon
Manual S explained: HVAC equipment selection rulesHow ACCA Manual S turns a load into an equipment choice: sizing limits, expanded data and heat pump rules. Then select equipment in Tradewright.2 min readComing soon
Manual D explained: residential duct design basicsWhat Manual D covers, how it relates to Manual J and S, and what a contractor needs to know. Then design the system in Tradewright.2 min readComing soon
HVAC load calculation: how heating and cooling loads workHeating and cooling loads from first principles: design temperatures, envelope, infiltration and gains. Then run a Manual J in Tradewright.2 min readComing soon
How to sell HVAC: Good/Better/Best at the kitchen tablePresenting engineered options, pricing three tiers and closing at the kitchen table without pressure. Get the proposal template.2 min readComing soon
Heat pump vs furnace: a contractor's guideOperating cost, comfort, sizing and when dual-fuel wins, with worked numbers. Then compare systems on 15-year cost in Tradewright.2 min readComing soon
Heat pump vs boiler: options for hydronic homesWhen a heat pump beats a boiler, when it doesn't, and how to size for radiators. Then price both options in one proposal with Tradewright.2 min readComing soon
Cold climate heat pump sizing: capacity at design temperatureSize cold-climate heat pumps on capacity at design temperature, not nameplate tons. Balance points, backup and rebate rules.2 min readRebates
Rebate program guides
What NYS Clean Heat and Mass Save require from contractors, date-stamped and sourced.
Compare
Software comparisons
Factual, dated comparisons built from public pages.
Best HVAC load calculation softwareMethod, inputs, outputs and price, side by side.Best HVAC proposal softwareOptions, pricing, e-sign and design compared.Conduit alternativeLoad calculation, equipment selection and proposals.Cool Calc alternativeManual J, equipment selection, proposals and price.Wrightsoft alternativeIn-home design and proposals for sales teams.OnCall Air alternativeProposals, engineering, pricing and CRM fit.
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