Brazed Plate Heat Exchanger - 70 Plates 5"x12" 1 1/4"MPT 930,000 Btu

WiseWater Brazed Plate Heat Exchanger has a lightweight and compact design that allows for easy installation and service. It is made of stainless steel 316L, brazed with 99.9% copper, and has 1 1/4" male fittings. When compared to other types,the advantage of this heat exchanger is that it features corrugated plates that produce a highly turbulent flow which allows for a true counter-current exchange. A counter-current flow is the most efficient way of exchanging heat between two fluids. Because of this, and due to the smaller size and reduced material content, Brazed Plate Heat Exchangers can be the most economical heat transfer choice. Depending on the application, the capacity ranges from 630,000 - 930,000 Btu/hr. This product has a 1 year warranty against manufacturer defects and is UL listed.

Product Information

BL26C-70D Fitting Size
1 1/4" MPT Materials
Stainless Steel 316L,
99.9% Copper


-256 F


5" x 12.2" x 6.7"
Design Pressure


Test Pressure




Application Specifications


Floor Heating Domestic Hot Water Heating Snow Melting
850 kBtu/hr 930 kBtu/hr 630 kBtu/hr

40 GPM / 40 GPM
(Boiler temp.: 180F
System temp.: 100F-130F)

55 GPM / 16 GPM
(Boiler temp.: 180F
Pipes temp.: 40F-140F)
38 GPM / 42 GPM
(Boiler temp.: 180F
50% Glycol temp.: 110F-140F)

BPHE Brochure.pdf
Limited Warranty of Heat Exchanger.pdf
Instruction Manual.pdf

If you have any special requirements, please fill the Heat Exchanger Sizing and Quote Form.pdf

FAQ and Support
How to clean your Brazed Plate Heat Exchanger:
Narrow channels in the heat exchanger allow for a strong and steady pressure. Because of the pressure strength, these heat exchangers naturally self-clean the buildup in the channels. However, in some conditions such as hard water at high temperatures, stubborn buildup and scaling can occur. In order to keep your heat exchanger running smoothly and optimally, it's recommended that you clean it out every so often to get rid of this buildup. There are a few ways to clean out a Brazed Plate Heat Exchanger: using a water jet (sold at hardware stores) can help loosen and remove buildup; for a different approach, you can use formic, citric, acetic, or any other organic acid that works with stainless steel/copper to get scaling off. You can also scrub at it with a brush, though be sure not to use carbon steel wool as it can scratch and leave deposits that can lead to corrosion. When cleaning your heat exchanger, make sure to wear gloves and goggles for protection against debris/cleaning solution splashing.
We have worked with heating systems for over 10 years and are happy to help you with any questions or concerns that you may have. You can email us at or call us at 833 328 6888 for help with your heating projects.