---
product_id: 341641053
title: "AB Plate Heat Exchanger, 3 x 8 Inch, 20 Plates, 316L SS, Copper Brazed | UL Certified; sealed, compact design for efficient heat transfer in floor heating, water heating and hydronic systems."
brand: "ab"
price: "$356.82"
currency: USD
in_stock: true
category: "Ab"
url: https://www.desertcart.us/products/341641053-ab-plate-heat-exchanger-3-x-8-inch-20-plates
store_origin: US
region: United States of America
---

# Up to 12.4 GPM flow rate 180,000 BTU max heat capacity 316L stainless steel + 99.9% copper brazing AB Plate Heat Exchanger, 3 x 8 Inch, 20 Plates, 316L SS, Copper Brazed | UL Certified; sealed, compact design for efficient heat transfer in floor heating, water heating and hydronic systems.

**Brand:** ab
**Price:** $356.82
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your heating game with precision-engineered efficiency!

## Quick Answers

- **What is this?** AB Plate Heat Exchanger, 3 x 8 Inch, 20 Plates, 316L SS, Copper Brazed | UL Certified; sealed, compact design for efficient heat transfer in floor heating, water heating and hydronic systems. by ab
- **How much does it cost?** $356.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/341641053-ab-plate-heat-exchanger-3-x-8-inch-20-plates)

## Best For

- ab enthusiasts

## Why This Product

- Trusted ab brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Premium Durability:** Crafted from corrosion-resistant 316L stainless steel with copper brazing for leak-proof longevity.
- • **Energy-Smart Design:** Maximizes heat transfer with ultra-thin, corrugated plates—no electricity or oxygen consumption needed.
- • **Versatile Application:** Perfect for floor heating, snow melting, solar systems, and more—future-proof your home’s comfort.
- • **Effortless Installation:** Smooth threaded 3/4" MPT ports ensure quick, flexible hookups without hassle.
- • **Unmatched Thermal Power:** Delivers up to 180,000 BTU/hr for rapid, efficient heating.

## Overview

The AB Plate Heat Exchanger is a compact, high-performance water-to-water heat exchanger featuring 20 brazed plates made from premium 316L stainless steel and 99.9% copper. It delivers up to 180,000 BTU/hr with a flow rate of 12.4 GPM, supporting a wide range of applications including floor heating, snow melting, and solar heating. Designed for durability and energy efficiency, it withstands pressures up to 435 psi and temperatures up to 250°C, making it a reliable, eco-friendly solution for modern heating systems.

## Description

Built with high quality stainless steel 316L and 99.9% copper, this model produces a counter-current flow to maximize heat efficiency. This product is highly efficient due to the corrugated plates which produce a high, turbulent flow in a true counter-current direction. With their compact size and reduced material content, they can be the most economical heat transfer choice. Product Information and Specifications Stainless Steel 316L/Copper 20 Plates Port Size: 3/4" MPT 130,000 – 180,000 Btu/hr Capacity Floor Heating Capacity: 180,000 Btu/hr Floor Heating GPM (Boiler = 180F / System = 100F-130F): 12.4 GPM / 12.4 GPM Domestic Hot Water Heating Capacity: 130,000 Btu/hr Domestic Hot Water Heating GPM (Boiler = 180F / Pipe 40F-140F): 9 GPM / 3 GPM Min. Operating Temp.: -256F Max. Operating Temp.: 482F Design Pressure: 435psi Test Pressure: 653psi Materials: Stainless Steel 316L, 99.9% Copper Dimensions: 3" x 8" Applications Domestic Hot Water Heating Central Heating Floor Heating Driveway Snow Melting Radiator Heating Heating and Cooling HVAC Installation Solar Heating

## Features

- 【Premium Quality】Our plate heat exchanger is made of high quality 316L stainless steel which are brazed together by 99.9% copper at the edges for a reliable and rugged part to form a durable, integral piece that can resist leakage and withstand high pressure and temperature.
- 【Convenient For Use And Energy Saving】Smooth Thread makes a easy, quick, flexible hookup. Highly conductive and super-thin stainless steel plates make good performance and economy for heating transfer and cooling without electricity consumption and oxygen consumption.
- 【Product Parameter】130,000 - 180,000 BTU CAPACITY: Depending on the application, this product can produce 130kBtu to 180kBtu per hour. 20 PLATES; 3"x8", 3/4" MPT: 20 brazed plates work to efficiently heat water for your application.
- 【Multiple Applications】AB water heat exchanger offers the highest level of thermal efficiency and durability in a compact & lightweight unit, perfect for domestic water heating, Floor Heating, Snow Melting, District or Zone Heating Systems, Outdoor Wood Furnaces, Hydraulic and Lube Oil Coolers, Radiator Heating, Hydronic Heating, Solar Heating, Wood Boiler.
- 【100% Satisfaction Service】 Our heat exchanger comes with a 1-year warranty to cover manufacturer defects. And we provide 100% satisfaction service as well as best premium quality product, if you have any problem about the product, please contact us freely.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B073ZND46C |
| ASIN  | B073ZND46C |
| Best Sellers Rank | #220,507 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #235 in Central Heating Systems & Accessories |
| Brand Name | AB |
| Capacity | 316 Liters |
| Color | Copper |
| Customer Reviews | 4.5 4.5 out of 5 stars (84) |
| Customer reviews | 4.5 4.5 out of 5 stars (84) |
| Date First Available  | 20 March 2021 |
| Efficiency | High Efficiency |
| Flow Rate | 9 Gallons Per Minute |
| Is Discontinued By Manufacturer  | No |
| Is Electric | No |
| Item Depth | 8 inches |
| Item Dimensions W x H | 7.6W x 20.3H centimeters |
| Item Weight | 3.5 Pounds |
| Item model number  | BL14-20D |
| Manufacturer | AB |
| Manufacturer  | AB |
| Manufacturer Part Number | BL14-20D |
| Material Type | 99.9% Copper, Stainless Steel 316L |
| Maximum Pressure | 435 Pound per Square Inch |
| Maximum Temperature | 250 Degrees Celsius |
| Model Number | BL14-20D |
| Mount Type | Floor |
| Power Source | wood |
| Product Dimensions  | 32.51 x 16.51 x 13.21 cm; 1.59 kg |
| Special Features | High-quality and Versatile Water Heating Solution |
| Style Name | Indoor Installation |

## Product Details

- **Brand:** AB
- **Capacity:** 316 Liters
- **Power source:** wood
- **Product dimensions:** 7.6W x 20.3H centimeters
- **Special features:** High-quality and Versatile Water Heating Solution

## Images

![AB Plate Heat Exchanger, 3 x 8 Inch, 20 Plates, 316L SS, Copper Brazed | UL Certified; sealed, compact design for efficient heat transfer in floor heating, water heating and hydronic systems. - Image 1](https://m.media-amazon.com/images/I/71pCKSW8nqL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How to clean and protect my plate heat exchanger properly?**
A: Protect it from water hammer by installing arrestors/hoses at the inlet/outlet. For cleaning, reverse-flush with ≤5% weak acid for ≤30 mins, then rinse thoroughly with clean water.

**Q: What after-sales support do you offer for your stainless steel plate heat exchanger?**
A: For our stainless steel plate heat exchangers used under normal conditions, we provide a 1-year after-sales support service, which covers manufacturing defects from the factory.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-15*