Name: Top 10 ⭐ A.O. Smith Burkay® Commercial and Residential Gas Boiler 420 MBH Natural Gas 🔥
SKU: 4719332
Availability: InStock

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Top 10 ⭐ A.O. Smith Burkay® Commercial and Residential Gas Boiler 420 MBH Natural Gas 🔥

Original price was: $515.00.Current price is: $91.99.

SKU: 4719332 Categories: Boilers, Hydronics Tag: Copper

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Efficient copper coil combustion chamber – continuous coils of tightly wound copper tubing form a unique combustion chamber, water circulating thru the coils, around the flame, captures radiant heat which may otherwise be lost

Unique Burkay® coil and heat exchanger design provide maximum heat transfer and proven held durability

The patented Burkay® burner maximizes efficiency, uses primary air injection at up to 72 individual oriﬁces plus secondary entrainment of air, and approved for installation on combustible doors as shipped from factory

Slow opening redundant gas valves ensure smooth light-off without came roll-out or pilot outage

Thermal balancer – patented pump delay system that allows boiler and pump to run simultaneously but delays pump shut off at end of heating cycle to remove usable heat from the heat exchanger and reduce the scale forming tendencies of motionless hot water

Automatic safety controls and electronic ignition – proven pilot ignition system provides came failure response in under 1 second, redundant high limit controls and gas valves assure safe shutoff in the event of overheating or came failure

Working pressure – ASME approved, hydrostatically tested and carried for 160 psi, ships with ASME 125 psi relief valve

This model meets the thermal efficiency and standby loss requirements of the U.S. Department of Energy and current edition ASHRAE/IESNA 90.1

Application	Commercial, Residential
Length	31-1/2 in
UL Listed	No
Type	AHW42014N000Z40
Supply Pipe Connection	1-1/2 in
Return Pipe Connection	1-1/2 in
Power Source	Gas
Material	Copper
Input MBH	420 MBH
BTU	420000
Ignition System	Electronic Ignition
Height	57-1/8 in
Fuel Type	Natural Gas
Energy Star Compliant	No
Collection	Burkay®
CEC Compliant	For Sale in CA
Width	27 in