Replacement Circuit Board for 125K BTU Heaters

$136.75
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Estimate delivery times: 3-6 days (International)

Return within 45 days of purchase. Duties & taxes are non-refundable.

Replacement Circuit Board for 125K BTU Heaters
$136.75

Replacement Circuit Board for 125K BTU Heaters

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Replacement Circuit Board for 125K BTU Heaters

New OEM Manufactured Control Circuit Board

The Control Board is the newest style 6 Pin control board compatible with all Mr. Heater, HeatStar, Big Maxx, and Enerco overhead Propane and Natural Gas unit heaters under 125,000 BTU.

Key Features:

  • Replacement Ignition Control Circuit Board – 24-volt design
  • Optimized for compact overhead furnaces
  • Compatible with various models from Mr. Heater, HeatStar, and Enerco
  • Dependable performance for reliable heating solutions
  • USA-Based – Proudly distributed from Southwest Michigan, ensuring quality control
  • 50+ combined technical support expertise

OEM Compatibility:

Mr. Heater Models: Control Board is an OEM Replacement for the following:

  • MHU45 LP, MHU45 NG, MHU50 LP, MHU50 NG, MHU55 LP, MHU55 NG
  • MHU70 LP, MHU75 LP, MHU75 NG, MHU80 LP, MHU80 NG, MHU125 LP, MHU125 NG

HeatStar Models: Compatible with the following:

  • HSU45 LP, HSU45 NG, HSU50 LP, HSU50 NG, HSU55 LP, HSU55 NG
  • HSU70 LP, HSU75 LP, HSU75 NG, HSU80 LP, HSU80 NG, HSU125 LP, HSU125 NG

Why Choose Our Replacement Circuit Board?

Ensure seamless operation and peak efficiency of your heating system with our high-quality Ignition Control Circuit Board. This OEM replacement part not only matches the specifications of your equipment but also guarantees reliability and performance. With our USA-based support team on standby, you're guaranteed a smooth experience from installation to routine maintenance. Don't compromise on comfort; invest in the best heating control solution available.

Order your Replacement Circuit Board today and bring warmth back to your space with peace of mind!

    • Free & Fast Shipping - We offer free shipping to most of the USA with a normal delivery time of 3-10 business days. However, due to various situations, additional delivery time (up to 3 weeks) may be required for some items.
    • Alternative Carriers - We may use alternative carriers (e.g. USPS, FedEx, UPS, etc.) to ensure your package arrives safely and on time. Due to the use of multiple carriers, we are unable to provide a tracking number automatically.
    • Handling Time - Orders are processed and shipped within 1-5 business days of receiving cleared payment.
    • Shipping Restrictions - Shipping to Alaska, Hawaii, Puerto Rico, Guam, and other US territories may incur shipping charges or delivery restrictions. Please contact us before ordering, or your order can be refunded/cancelled.
    • State Restrictions - There may be restrictions based on your state of purchase. For example, certain items may not be shipped to California due to state regulations.
    • Contact for Tracking Updates - If you require tracking updates or have any concerns about the delivery of your order, please feel free to contact us, and we will be happy to assist you.

    • 30-Day Hassle-Free Returns - We want you to be completely satisfied with your purchase. If you are not, you can return the item within 30 days of receiving it for a full refund or exchange.
    • Easy Return Process - To start a return, simply contact us and we will provide you with a prepaid return shipping label and detailed instructions.
    • Restocking Fee - There are no restocking fees for returns. However, the buyer is responsible for return shipping costs if the return is not due to a seller's error.
    • Refund Processing Time - Refunds will be processed within 5 business days of receiving the returned item in its condition.

We accept all major credit cards, PayPal, and Apple Pay for your convenience. Your payment information is secure and encrypted to ensure a safe and seamless transaction. Please complete your payment within 3 days of purchase to avoid any delays in shipping.

Your feedback is extremely important to us. We strive to provide the best products and customer service possible. If you are satisfied with your purchase, please take a moment to leave us a positive review. If you have any concerns or issues with your order, please contact us before leaving negative feedback. We are committed to resolving any problems and ensuring your satisfaction.




If you have any questions or concerns, please feel free to out to our customer support team. You can contact us through the eBay messaging system. We are available Monday to Friday, 9:00 am to 5:00 pm EST, and we will do our best to respond to your inquiry within 24 hours.



Buy it now and enjoy a pleasant shopping experience!

Unit Quantity: 1 Power Source: Natural Gas,Propane Compatible Model: Mr Heater MHU45 LP Material: Plastic
Type: Ignition Control Board Amperage: Not Electric Voltage: 24 V Item Weight: 0.5 lb
Item Thickness: 1 in Power Phase: Not Electric    

Free Shipping In USA

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:

– Received the wrong item.
– Item arrived not as expected (ie. damaged packaging).
– Item had defects.
– Over delivery time.
– The shipper does not allow the goods to be inspected before payment.

The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.

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