The DPST (Double Pole Single Throw) configuration ensures robust switching performance within an operational temperature range of -4°F to 149°F

The Weil McLain 512-200-035 aluminized burner is a professional-grade replacement component engineered specifically for high-efficiency hydronic systems

Direct replacement for 1172727

Precision Ports: Engineered for even flame distribution to maximize heat transfer across the heat exchanger

Exceeding this limit can damage the internal diaphragm and affect modulation accuracy

Robertshaw 700-454 Gas Valve Freon The DPST (Double Pole SingleThe Robertshaw 700 454 is a professional grade 120V Standing Pilot Gas Valve designed for high capacity heating applications, supporting up to 300,000 BTU. This combination control integrates a manual gas cock, an automatic pilot safety valve, and a line voltage solenoid operator into a single compact housing. Engineered with a 3 4" NPT inlet and a 3 4" straight thru outlet, it arrives factory set for Natural Gas at a 3. 5" WC output. The 7000BER 120