Best Furnace Circuit Boards of 2026

Corey Phillips Avatar
Corey Phillips
Last Updated: 5 Feb 2026

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Furnace circuit boards are essential components in the heating systems of homes and buildings. They control the functions of the furnace, such as igniting the burners, monitoring the temperature, and regulating the fan. These circuit boards come in various sizes and shapes to fit different types of furnaces. They are made with high-quality materials that ensure durability and efficient performance. Investing in a reliable furnace circuit board can help stabilise the heating system, reduce energy consumption, and prolong the lifespan of the furnace.

At a Glance: Our Top Picks

HTS PCB for Baxi Solo 2 & 3 Boilers Cover #TOP 1
HTS PCB for Baxi Solo 2 & 3 Boilers
ftb score rating icon 9.9
Baxi Solo PF Printed Circuit Board 231711 Cover #TOP 2
Baxi Solo PF Printed Circuit Board 231711
ftb score rating icon 9.8
Baxi Duo Tec 2 Combi Circuit Board 720878202 Cover #TOP 3
Baxi Duo Tec 2 Combi Circuit Board 720878202
ftb score rating icon 9.6

Top 3 Furnace Circuit Boards

#TOP 1

HTS PCB for Baxi Solo 2 & 3 Boilers

HTS
HTS PCB for Baxi Solo 2 & 3 Boilers Cover
HTS PCB Compatible with Baxi Solo 2 & 3 PF 30 40 50 60 70 80 Boiler Printed Circuit Board 231711BAX PCB

The HTS Baxi PCB offers perfect compatibility with Baxi Solo 2 and 3 PF boilers, ensuring efficient operation of models 30 to 80. Its reliable performance controls essential boiler functions, guaranteeing effective heating and hot water delivery to your home or business. With durable construction, this circuit board is designed to withstand continuous use, providing long-lasting performance. Additionally, the easy installation feature allows you to quickly get your boiler back up and running, minimising downtime and disruption.

What We Like
Perfect compatibility with Baxi models
Reliable performance for heating
Durable construction for longevity
Easy installation reduces downtime
#TOP 2

Baxi Solo PF Printed Circuit Board 231711

231711
Baxi Solo PF Printed Circuit Board 231711 Cover
Baxi Solo PF 2 & 3 Printed Circuit Board 231711 BAX PCB

The Baxi Solo PCB is an essential component for your Baxi Solo 2 PF and Solo 3 PF boilers. Designed specifically for models 30 to 80, this printed circuit board ensures your boiler operates efficiently. With the Baxi part number 231711, it guarantees compatibility and reliability. This board plays a crucial role in controlling the boiler's functions, providing you with peace of mind knowing that your heating system is in good hands. It offers convenience by simplifying maintenance and repairs, keeping your home warm and comfortable.

What We Like
High compatibility with various models
Reliable performance
Easy to maintain
Ensures efficient boiler operation
#TOP 3

Baxi Duo Tec 2 Combi Circuit Board 720878202

720878202 WAS 720878201
Baxi Duo Tec 2 Combi Circuit Board 720878202 Cover
BAXI DUO TEC 2 COMBI 24 28 33 40 GA CIRCUIT BOARD PCB 720878202 WAS 720878201

The Baxi Combi Circuit Board is an essential component for maintaining the efficiency of your heating system. Designed specifically for Baxi's Duo Tec 2 model, this circuit board ensures reliable performance, helping you avoid unexpected breakdowns. Its compatibility with several models, including the 24, 28, 33, and 40, offers you flexibility and convenience. By upgrading to this circuit board, you can enhance the overall reliability of your heating system, ensuring a warm and comfortable home.

What We Like
Reliable performance
Compatible with multiple models
Enhances system efficiency
Flexibility for users
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How much does it cost to replace a circuit board in a furnace?

A furnace control board replacement costs $300 to $650 on average. A furnace circuit board or motherboard costs $50 to $300 for the part alone, plus $250 to $350 for replacement labor....Furnace control board replacement cost.

2. What is a circuit board for a furnace?

The furnace circuit, or control board regulates the power supply to all the furnace components. When the home's thermostat calls for heat, the furnace goes through a timed ignition sequence that is initiated when the circuit board sends 120 volts of alternating current to the furnace's draft inducer fan motor.

3. How much does a circuit board cost?

A circuit board typically costs from 50 cents to $300 dollars to produce, depending on your needs. The price to produce a circuit board has many different factors, and may depend on the number layers, complexity, quantity and components included on the board.

Editor's Notes

During our furnace circuit board research, we found 306 furnace circuit board products and shortlisted 3 quality products. We collected and analyzed 3,299 customer reviews through our big data system to write the furnace circuit boards list. We found that most customers choose furnace circuit boards with an average price of £20.00.

The furnace circuit boards are available for purchase. We have researched hundreds of brands and picked the top brands of furnace circuit boards, including HTS, Baxi.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.