but the technical specifications and performance of the 26025B and 26025B/U are identical

000 feet or more above sea level to account for reduced oxygen and air density

the Zonefirst SPRD-18 is compatible with vertical installations

If your unit was originally equipped with an electronic control

This Trane centrifugal blower is designed to meet strict furnace draft inducer specifications

Watts 0275464 Valve 320734-701 but the technical specifications andProfessional grade Watts 0275464, a high capacity Series 174A boiler pressure relief valve, is engineered for critical overpressure protection in large scale hot water heating and domestic supply systems. Constructed with a heavy duty bronze body and a rugged stainless steel spring, this 1 inch NPT valve is factory set to a 150 psi pressure relief setting and delivers a high volume discharge capacity of 3,795,000 BTU hr. The 174A series utilizes a non