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Return to Heat Exchanger Main Page Main Page Radiant Heat PEX Tubing Gas Space Heaters Electric Heaters Boilers Heating Supplies HVAC Radiators Fan Convectors Unit Heaters Solar Plumbing Supplies Water Heaters Vent Pipe Gas Fireplace Wood Stoves House Fans Bath & Kitchen Misc Save Energy Clearance Items Get the look of wood - the ease of gas heat! A1412 Brazed Flat Plate Heat Exchanger Buy Page Use a Flat Plate Heat Exchanger for Isolating Underfloor Radiant Floor Heating and Hydronic Heating Circuits Flat Plate Heat Exchangers Flat Plate Heat Exchangers Brazed Flat Plate Heat Exchangers were developed years ago and they are now the most widely used device for isolating hydronic heating circuits. The Brazed Flat Plate Heat Exchangers transfer heat from one liquid medium to another with no intermixing of the two fluids. It requires the fluid to be pumped into both sides of it at once. The flat plate heat exchangers we sell can transfer up to 240,000 BTU’s per hour. The amount of heat transferred is dependent on the delta T (difference of temperature between the two fluids). It also depends on the amount of fluid moving through both sides of the heat exchanger. Flat Plate Heat Exchangers are required for all radiant heating systems where you mix heating water with domestic water. Well - not required everywhere. But, in most places it is and for places where you can mix heating and domestic water - you should never ever mix the two. Thus, use a flat plate heat exchanger for all open loop heating systems! Buy Brazed Flat Plate Heat Exchangers Here Model Your Cost Change quantity in your Shopping Cart. You can always remove items later. 3/4 Inch - Single Wall Flat Plate Heat Exchangers Brazed Flat Plate Heat Exchanger - 10 Plate - 3/4 inch NPT connection Model LA14-10 $139.00  Brazed Flat Plate Heat Exchanger - 20 Plate - 3/4 inch NPT connection Model LA14-20 $165.00  Brazed Flat Plate Heat Exchanger - 30 Plate - 3/4 inch NPT connection Model LA14-30 $198.00  Brazed Flat Plate Heat Exchanger - 50 Plate - 3/4 inch NPT connection Model LA14-50 $249.00  1 Inch - Single Wall Flat Plate Heat Exchangers Brazed Flat Plate Heat Exchanger - 20 Plate - 1 inch NPT connection Model LB31-20 $278.00  Brazed Flat Plate Heat Exchanger - 30 Plate - 1 inch NPT connection Model LB31-30 $345.00  Brazed Flat Plate Heat Exchanger - 40 Plate - 1 inch NPT connection Model LB31-40 $425.00  3/4 Inch - Double Wall Flat Plate Heat Exchangers Brazed Flat Plate Heat Exchanger - 30 Plate - Double-Wall - 3/4 inch NPT connection Model LA14-30-DWA $599.00  1 Inch - Double Wall Flat Plate Heat Exchangers Brazed Flat Plate Heat Exchanger - 30 Plate - Double-Wall - 1 inch NPT connection Model LB31-30-DWA $1,099.00  Our Return Policy      Our Shipping Policy Return to Heat Exchanger Main Page Main Page Sizes for Flat Plate Heat Exchangers Model LA14-10 3/4 NPT inch connection - 8 long by 3 1/4 wide by 2 1/4 inches - 2.5 pounds 10 Plates - Max 45,000 btu Model LA14-20 3/4 NPT inch connection - 9 long by 4 wide by 4 inches - 4 pounds 20 Plates - Max 96,000 btu Model LA14-30 3/4 NPT inch connection - 30 plate 8.5 long by 4 wide by 5 inches - 5 pounds 30 Plates - Max 150,000 btu Model LA14-50 3/4 NPT inch connection - 50 plate 8 long by 3.5 wide by 5.5 inches - 7.5 pounds 50 Plates - Max 240,000 btu Model LB31-20 1 NPT inch connection - 12.5 long by 5 wide by 3.5 inches - 10.5 pounds 20 Plates - Max 128,000 btu Model LB31-30 1 NPT inch connection - 12.5 long by 5 wide by 5.5 inches - 13.5 pounds 30 Plates - Max 160,000 btu Model LB31-40 1 NPT inch connection - 12.5 long by 6 wide by 5.5 inches - 17 pounds 40 Plates - Max 240,000 btu Model LA14-30-DWA 3/4 NPT inch connection - Double Wall - 8.25 long by 3.25 wide by 4 inches - 7 pounds 30 Plates Model LA31-30-DWA 3/4 NPT inch connection - Double Wall - 12 long by 5 wide by 5 inches - 12 pounds 30 Plates home  •   products  •   sale items  •   contact us  •   search  •   Help Shop by Brand: Activent •  Ariston •  Beacon Morris •  Biasi •  Bosch •  Buderus •  Caleffi •  Cash Acme •  Electro Boilers •  Embassy Boilers •  Empire Space Heaters •  Eskabe Gas Space Heaters •  Fantech Filters •  Fantech House Fans •  Grundfos Plumbing Supplies •  Hayn Lines •  Honeywell Heating Supplies •  HouseNeeds Site Map •  HousePEX •  Marley Space Heaters •  Monitor Boilers •  Monitor Space Heaters •  Myson •  Peter Mangone •  POM Energy Concepts •  PowerStar •  PowerStream •  Precision Hydronics •  Precision Temp •  Qmark •  Radiant Heat •  Regency Fireplaces •  Rinnai •  Robur •  Schluter Radiant Heat System •  Simpson Duravent •  Sioux Chief Products •  Smith Environmental Products •  SolaTube Solar Products •  Stiebel Eltron Water Heaters •  Stiebel Eltron Solar Products •  Taco Heating Supplies •  Takagi •  Tamarack •  Toyotomi •  Triangle Tube •  Trinity Boilers •  Ultra-Fin Radiant Floor Heat •  Vanguard •  Warmly Yours •  Z Flex Vent Pipe Copyright © 2000-2009  HouseNeeds Inc.  •  167 Mad River Canoe Rd  •  Waitsfield, VT  •  05673  •  1.802.583.2726