Interior vs Exterior Wall Insulation Cost Calculator
Compare inside and outside solid-wall insulation quotes, incentives, bill savings, payback, and discounted lifetime costs.
Compare inside and outside solid-wall insulation quotes, incentives, bill savings, payback, and discounted lifetime costs.
Compare air-to-air and air-to-water heat pump quotes, electricity costs, lifetime costs, and simple payback over your planning period.
Compare condensing and non-condensing gas tankless water heater costs using quotes, UEF, gas rates, hot-water use, and ownership years.
Total steam radiator EDR, convert it to BTU/hr, and compare it with a boiler’s published Net AHRI Steam rating.
Calculate added buffer tank or volumizer water volume from heat pump output, zone load, run time, temperature swing, and manual minimums.
Check ECM circulator flow margin at design head, annual electricity savings, and simple payback using your watts, runtime, rate, and costs.
Calculate minimum hydronic expansion tank size, acceptance volume, and target pre-charge from water volume, temperatures, and pressures.
Estimate annual savings and simple payback for converting steam heating to hot-water heating using bills, quotes, and savings cases.
Compare home-run PEX and trunk-and-branch layouts for hot-water wait time, wasted water, utility expense, and ownership-period cost.
Estimate annual water and sewer usage-charge savings, net PRV project cost after rebate, and simple payback from your bills and quote.