Smith 100111038 Combined Controller is the critical integrated command module designed specifically for the BTH 120 100 and BTH-120/A series natural gas water heaters

extending the service life of the equipment while ensuring the system operates at peak fuel-to-steam efficiency

technicians ensure a drop-in internal overhaul that corrects common failure points such as leaking

and industrial process heating equipment

The Fireye 35-69 Heat Insulator is a critical thermal barrier designed for high-heat industrial burner environments

Lennox 27A28 Heater 340793-762 Smith 100111038 Combined Controller isThe Lennox 27A28 (Model ECB29 12. 5CB 8P) is a high performance 12. 5 kW electric heat kit engineered for seamless integration into Lennox air handler and blower cabinet systems. Operating on a 208 230V power supply, this resistive heat assembly serves as the primary auxiliary or emergency heat source when ambient temperatures drop below the heat pumps balance point. For contractors performing service or retrofits, this electric heat strip is designed