Energy and comfort
Size a room air conditioner or a water heater with published rules, and know where a calculator should stop.
Topics in energy and comfort
Air conditioning
Size a room AC, and see why whole-house sizing needs a load calculation.
- Room AC size calculator
- What size AC for my house
Water heaters
Find your peak-hour demand and tankless heat output.
- Water heater size calculator
- Tankless water heater calculator
Insulation
Work out attic R-value and depth to add, with a vermiculite stop.
- Attic insulation calculator