Commercial and Residential Gas Boiler 420 MBH Natural Gas
You last purchased this on
A.O. Smith
Burkay® Commercial and Residential Gas Boiler 420 MBH Natural Gas
Log in or Create Account
Log in or Create an Account to see product availability.
-
Pick Up: Not available
-
Shipping: Not available
Purchase history
A.O. Smith
Burkay®
Commercial and Residential Gas Boiler 420 MBH Natural Gas
100123159
Order #
Order Date
Job Name
My PO#
Frequently Purchased Together
Product Details
- 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 ori?ces plus secondary entrainment of air, and approved for installation on combustible doors as shipped from factory
- Efficient copper coil combustion chamber - continuous coils of tightly wound copper tubing form a unique combustion chamber, water circulating through the coils, around the flame, captures radiant heat which may otherwise be lost
- This model meets the thermal efficiency and standby loss requirements of the U.S. Department of Energy and current edition ASHRAE/IESNA 90.1
- 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
- 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
- Slow opening redundant gas valves ensure smooth light-off without came roll-out or pilot outage
- All water tubes are made from copper
- All castings are made of bronze or brass
Specifications
- ASME:
- ASME H
- Application:
- Commercial, Residential
- BTU:
- 420000
- Boiler Type:
- Hot Water Supply Boiler
- CEC Compliant:
- For Sale in CA
- Collection:
- Burkay®
- Depth:
- 31-1/2 in
- Emission:
- Ultra-Low NOx
- Energy Star Compliant:
- No
- Fuel Type:
- Natural Gas
- Height:
- 57-1/8 in
- Ignition System:
- Pilot
- Input (MBH):
- 420 MBH
- Installation Type:
- Floor Standing
- Material:
- Brass, Bronze, Copper
- Media:
- Hot Water
- Return Pipe Connection:
- 1-1/2 in
- Supply Pipe Connection Size:
- 1-1/2 in
- UL Listed:
- No
- Volts:
- 120V
- Width:
- 27 in