Heating

Water heaters -electric and gas; standard, on-demand, and indirect
Hydronic boiler and boiler systems
Radiant hot water floor heating
Radiant hot water snow melt for driveways
Gas forced hot air furance and furance systems
Heat loss calculations -in preparation for selecting appropriate size system for load
Thermostats -standard, re-zone, retrofit, multi-zone
Seasonal start-up -cleaning, evaluation for safety and efficiency
Gas fireplaces
Gas space heaters