Laird and Son Heating and Air Conditioning
Boilers
Natural & Propane Gas Fired Boiler Natural Gas-Fired Boiler Sealed Combustion, Gas Fired, Hot Water Boiler for Natural Gas or Propan
Q90-200 Q90 ODV-B
Remarkable 90% AFUE Efficiency
The Q90-200 dramatically reduces fuel consumption and pays for itself with substantial annual fuel savings. Its efficiency is increased beyond 90% when used in low temperature systems, such as radiant systems.
Remarkable 90% AFUE Efficiency
The Q90 dramatically reduces fuel consumption and pays for itself with substantial annual fuel savings. Its efficiency is increased beyond 90% when used in low temperature systems, such as radiant systems.
 
Revolutionary Cast Aluminum “Mono Block” Heat Exchanger
This one-piece heat exchanger design eliminates leaks that can occur due to section interface with sectional heat exchangers. The greater thermal conductivity of cast aluminum transfers heat three times faster than conventional cast iron, producing enormous gains in heat-up speed and operating efficiency. Also, the packaged boiler weighs only 220 pounds for easier installation.
Revolutionary Cast Aluminum Heat Exchanger
Transfers heat three times faster with greater thermal conductivity than conventional cast iron. It produces enormous gains in heat-up speed and operating efficiency. Also, the packaged boiler weighs only 220 pounds for easier installation.
Venting and Installation FlexibilityThe ODV-B Series boiler can be vented vertically up a chimney or horizontally through an exterior wall making it a convenient and cost effective choice for a variety of applications. Standing less than 31 inches high, this low profile boiler fits into areas that other boilers can not. The ODV-B is also an ideal choice when converting a home from electric heat to a hot water system.
Simplified Controls
The Quantum 90-200’s control design is engineered to maximize reliability. The Q90-200 incorporates an integrated boiler control with high limit and low water cut-off for operation, safety and diagnostics. Ignition is provided by a hot surface igniter and a single stage gas valve. Dual switches ensure air intake and exhaust vents are clear. All components are easily accessible through the removable door.
Safe, Economical CPVC and PVC Vent Pipe
Cooled flue gas can be safely vented through inexpensive readily available and easy to install PVC, after 5' of CPVC provided with the unit. The air intake also utilizes PVC pipe.
Cast Iron Heat Exchanger
The ODV-B utilizes cast iron construction because of its durability and efficient heat transfer capabilities. Cast iron sections and push nipples are an integral part of each ODV-B heat exchanger. Using only the highest quality cast iron and heat transfer designs, the ODV-B will provide many years of efficient and trouble-free operation.
Sealed Combustion, Direct-Vent System
Unlike conventional atmospheric boilers, the Q90-200 draws fresh air from outdoors for combustion, instead of air from inside the home. Therefore it does not compete with building occupants for its air supply. With this design the Q90-200 runs quieter and more efficiently than a traditional boiler.
Sealed Combustion, Direct-Vent System
Unlike conventional residential atmospheric and induced draft boilers, the Q90 draws fresh air from outdoors for combustion, instead of air from inside the home. Therefore it does not compete with building occupants for its air supply. With this design the Q90 runs quieter than a traditional boiler.
High Energy Efficiency and Lower Heating Costs
With efficiency ratings as high as 83%, the ODV-B provides increased energy savings resulting in lower fuel bills. With the potential cost savings this represents, the ODV-B boiler will pay for itself in a few short years.?
Safe, Economical CPVC and PVC Vent Pipe
Cooled flue gas can be safely vented through inexpensive readily available and easy to install PVC, after 5' of CPVC provided with the unit. The air intake also utilizes PVC pipe.
Simplified Controls
The Quantum 90’s simple design is engineered to maximize reliability. The Q90 incorporates an integrated boiler control for operation, safety and diagnostics. A High Temperature Limit Control is included for additional safety. Ignition is provided by a hot surface igniter and a single stage gas valve. A single pressure switch ensures air intake and exhaust vents are clear. All components are easily accessible through the removable door.
 
Environmentally Friendly
The Q90-200's direct-vent system, premix gas burner and low flame temperature reduce CO and NOx emissions (acid rain and smog components) by more than 30% and 50% respectively.
Environmentally Friendly
The Q90's direct-vent system, premix gas burner and low flame temperature substantially reduce CO and NOx emissions (acid rain and smog components).