---
product_id: 341641053
title: "AB Plate Heat Exchanger, 3\"x8\" 20 Plates Water To Water Heat Exchanger, Copper/SS316L Stainless Steel Brazed Plate Heat Exchanger For Floor Heating, Water Heating, Snow Melting"
brand: "ab"
price: "R6391"
currency: ZAR
in_stock: true
reviews_count: 5
category: "Ab"
url: https://www.desertcart.co.za/products/341641053-ab-plate-heat-exchanger-3x8-20-plates-water-to-water
store_origin: ZA
region: South Africa
---

# Up to 12.4 GPM flow rate 180,000 BTU max heating power 20 brazed stainless steel plates AB Plate Heat Exchanger, 3"x8" 20 Plates Water To Water Heat Exchanger, Copper/SS316L Stainless Steel Brazed Plate Heat Exchanger For Floor Heating, Water Heating, Snow Melting

**Brand:** ab
**Price:** R6391
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your heat game with precision-engineered power!

## Quick Answers

- **What is this?** AB Plate Heat Exchanger, 3"x8" 20 Plates Water To Water Heat Exchanger, Copper/SS316L Stainless Steel Brazed Plate Heat Exchanger For Floor Heating, Water Heating, Snow Melting by ab
- **How much does it cost?** R6391 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/341641053-ab-plate-heat-exchanger-3x8-20-plates-water-to-water)

## 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

- • **Robust & Reliable:** Built to withstand extreme conditions with 316L stainless steel and copper brazing, supporting pressures up to 435 PSI and temperatures up to 482°F.
- • **Compact Powerhouse:** Small 3"x8" footprint packs up to 180,000 BTU/hr capacity—perfect for floor heating, snow melting, and domestic hot water systems without bulky equipment.
- • **Energy-Smart Design:** Smooth threaded connections and super-thin plates ensure quick installation and efficient heat exchange without electricity or oxygen consumption.
- • **Versatile Heating Solution:** Ideal for modern hydronic heating, solar setups, wood boilers, and radiant floor systems—join the elite managing sustainable, high-performance heating.
- • **Unmatched Thermal Efficiency:** Maximize heat transfer with 20 precision-engineered stainless steel plates brazed with 99.9% copper for superior conductivity and durability.

## Overview

The AB Plate Heat Exchanger is a compact, high-efficiency water-to-water heat exchanger featuring 20 brazed 316L stainless steel plates with 99.9% copper edges. Delivering up to 180,000 BTU/hr and supporting flow rates up to 12.4 GPM, it excels in floor heating, snow melting, and domestic hot water applications. Designed for durability under high pressure (435 PSI) and temperature (482°F), it offers energy-saving, reliable performance for professional-grade hydronic 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

Review: As per description
Review: It sits on top of a new wood burning stove that reaches 500F on the surface, a timer is connected to a circular pump for floor heating pipe buried in concrete. Pump on for 2 minutes, off for 20 minutes. Thermal transfer fluid to the slab has a boiling point of 650 degrees F. I let the fluid get very hot, then the pump moves it for 2 minutes, enough time to push a gallon of very hot water through pex pipe under the building far end of concrete slab. Then the pump stops and the heating process repeats for 20 minutes. Rapid slab warm up using this timed start / stop procedure. Using this unit as a boiler essentially. Heats slab much faster than thermal transfer fluid always circulating. Excellent product, will but the 50 plate unit next and sell this 20 plate unit to a friend.

## 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #207,916 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #216 in Central Heating Systems & Accessories |
| Color | Copper |
| Customer Reviews | 4.3 4.3 out of 5 stars (83) |
| Customer reviews | 4.3 4.3 out of 5 stars (83) |
| Date First Available | 20 March 2021 |
| Date First Available  | 20 March 2021 |
| Flow Rate | 9 Gallons Per Minute |
| Is Discontinued By Manufacturer  | No |
| Item Weight | 1.59 Kilograms |
| Item model number | BL14-20D |
| Item model number  | BL14-20D |
| Manufacturer | AB |
| Manufacturer  | AB |
| Material | 99.9% Copper, Stainless Steel 316L |
| Maximum Pressure | 435 Pound per Square Inch |
| Part number | BL14-20D |
| Plug Profile | Floor |
| Power source type | wood |
| Product Dimensions | 32.51 x 16.51 x 13.21 cm; 1.59 kg |
| Product Dimensions  | 32.51 x 16.51 x 13.21 cm; 1.59 kg |
| Size | BL14-20D |
| Special Features | High-quality and Versatile Water Heating Solution |
| Style | 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"x8" 20 Plates Water To Water Heat Exchanger, Copper/SS316L Stainless Steel Brazed Plate Heat Exchanger For Floor Heating, Water Heating, Snow Melting - Image 1](https://m.media-amazon.com/images/I/71pCKSW8nqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by A***E on 28 March 2023*

As per description

### ⭐⭐⭐⭐⭐ Review
*by R***T on 14 December 2019*

It sits on top of a new wood burning stove that reaches 500F on the surface, a timer is connected to a circular pump for floor heating pipe buried in concrete. Pump on for 2 minutes, off for 20 minutes. Thermal transfer fluid to the slab has a boiling point of 650 degrees F. I let the fluid get very hot, then the pump moves it for 2 minutes, enough time to push a gallon of very hot water through pex pipe under the building far end of concrete slab. Then the pump stops and the heating process repeats for 20 minutes. Rapid slab warm up using this timed start / stop procedure. Using this unit as a boiler essentially. Heats slab much faster than thermal transfer fluid always circulating. Excellent product, will but the 50 plate unit next and sell this 20 plate unit to a friend.

### ⭐⭐⭐⭐⭐ Review
*by B***2 on 16 December 2023*

Perfect item

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-04*