Looking for the best heating relays to enhance your home’s warmth and efficiency? Our guide highlights the top 10 heating relays, offering easy-to-understand insights to help you find the perfect match for your space.
Heating relays are essential for controlling your home’s warmth. They connect your thermostat to your heating system, ensuring comfort and efficiency. Choosing the right one can upgrade your setup.
From floor heating to HVAC systems, there’s a relay for every need. Built-in transformers and easy installation make them user-friendly. Find the perfect match for your space.
Discover the best heating relays in our guide. We’ll help you make the right choice for a cozy home. Let’s get started!
List of Top 10 Heating Relays
| Image | Title | Best For | Price |
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Briidea 220V 240V On/Off Switch Electric Heating Relay with Built-in 24V Transformer, Replacement for Any Relay, Compatible with 24V Thermostat |
This Briidea Electric Heating Relay is perfect for homeowners who want better temperature control and comfort. It’s easy to install and works with any 24V thermostat, making it ideal for DIY upgrades. |
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AC120V On/Off Switching Electric Heating Relay with Built-in 24V Transformer, OONO F-1057 |
Best for home users with old heat. It adds new stats with ease. |
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AC208-240V On/Off Switching Electric Heating Relay with Built-in 24V Transformer, OONO F-1067 |
This electric heating relay is perfect for homeowners and DIY enthusiasts who want to upgrade their heating system. It’s easy to install and works with most thermostats, making it ideal for anyone looking for better temperature control. |
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SunTouch SunStat Relay R4 15A Dual Voltage Wi-Fi Floor Heating Relay 15 Amp |
The SunTouch SunStat Relay R4 is perfect for homeowners and contractors who want to expand their floor heating systems. It’s ideal for large spaces needing reliable, wireless control. |
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2 Pack 24V Fan Relay AC Switch SPST Fit for Fan Control HVAC Coleman Furnace Blower Humidifier Goodman Blower Heating Sequencer Relay 90-980 Isolation Re-Lay AC Switch SPST |
This 2 Pack 24V Fan Relay is perfect for anyone needing reliable fan control in their HVAC systems. Whether you’re a DIY enthusiast or a professional, it’s easy to install and works seamlessly with heating, cooling, or appliance setups. |
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Electric Heat Relay, DPST (240VAC) |
This 240V relay is perfect for electric heaters that need a 45-second delay. It is also good for heating and cooling workers who need 18-inch lead wires and a relay that works from -20°F to 120°F. |
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Upgrade SR501-4 Switching Relay, 1 Zone, Compatible with Taco SR501, SR5014 |
This relay is perfect for heating pros and careful home handymen who need to replace a Taco SR501 in a one-zone hot water system. It has clear wiring and steady 24V power. |
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HUAREW 24V Fan Relay 90-380 AC Fan Relay AC Switch SPST for Fan Control HVAC Coleman Furnace Blower Humidifier Goodman Blower Heating Sequencer Relay |
This HUAREW 24V Fan Relay is perfect for homeowners and HVAC technicians who need a reliable replacement part for their heating or cooling systems. It’s easy to install and works with many devices, making it a great choice for quick fixes. |
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90370 24V AC HVAC/R General Purpose Fan Relay SPDT 12A Load |
This 90370 fan relay is perfect for anyone fixing heating, cooling, or ventilation systems. It works with 24V AC setups and is easy to install. |
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77119 Heater Relay Board for IQ2020 of Watkins Control Box 2001-2009, Includes Power Jumpers and Screws, Replaces 74618 73577 |
This 77119 Heater Relay Board is perfect for spa owners with an IQ2020 control box (2001–2009.5) who need a reliable replacement to keep their spa heater running smoothly. It’s easy to install and ensures consistent water temperature for a comfortable spa experience. |
Detailed Reviews
Discover the top 10 heating relays carefully selected for comfort, efficiency, and value. Each product is expert-reviewed and backed by customer feedback, ensuring you find the perfect fit. Whether you need easy installation, reliable performance, or affordable upgrades, this guide has you covered. Dive in to find the best heating relay for your needs and transform your space with confidence.
1. Briidea 220V 240V On/Off Switch Electric Heating Relay with Built-in 24V Transformer, Replacement for Any Relay, Compatible with 24V Thermostat
The Briidea 220V/240V On/Off Switch Electric Heating Relay is a versatile replacement for any relay. It comes with a built-in 24V transformer, making it ready to use. This relay works with 24V thermostats, ensuring compatibility.
It supports 3-wire (R, W, C) or 2-wire (R, W) connections, fitting most setups. The immediate relay activation improves temperature control and comfort in your space.
Installation is simple and quick. Just mount it on your existing junction box and connect the thermostat wires. This relay is a reliable upgrade for your heating system.
| Pros | Cons |
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Perfect For:
This Briidea Electric Heating Relay is perfect for homeowners who want better temperature control and comfort. It’s easy to install and works with any 24V thermostat, making it ideal for DIY upgrades.
Ready to Purchase?
2. AC120V On/Off Switching Electric Heating Relay with Built-in 24V Transformer, OONO F-1057
The F-1057 Electric Heating Relay controls AC 120V heating systems using a low-voltage thermostat. It includes a built-in 24V transformer for easy setup.
Works with 3-wire and 2-wire thermostats, making it compatible with most systems. Immediate relay activation ensures better temperature control. LED indicator shows when it’s active.
Easy to install on a junction box or wall. Polycarbonate enclosure is durable and flexible. Comes with mounting hardware for quick setup.
| Pros | Cons |
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Perfect For:
Best for home users with old heat. It adds new stats with ease.
Ready to Purchase?
3. AC208-240V On/Off Switching Electric Heating Relay with Built-in 24V Transformer, OONO F-1067
The F-1067 Electric Heating Relay controls AC 240V resistive loads from low-voltage thermostats. It works with 3-wire and 2-wire thermostats, making it versatile. The built-in 24V transformer ensures easy setup.
It’s a direct replacement for any brand relay. Immediate relay activation improves temperature control. LED indicator shows when the relay is active.
The polycarbonate enclosure is durable and flexible for mounting. The packing list includes all needed parts. Not for fast-cycling systems—use solid-state relays instead.
| Pros | Cons |
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Perfect For:
This electric heating relay is perfect for homeowners and DIY enthusiasts who want to upgrade their heating system. It’s easy to install and works with most thermostats, making it ideal for anyone looking for better temperature control.
Ready to Purchase?
4. SunTouch SunStat Relay R4 15A Dual Voltage Wi-Fi Floor Heating Relay 15 Amp
The SunTouch SunStat Relay R4 is a dual-voltage device that works with SunTouch floor heating systems. It controls up to 15 amps and extends the area your thermostat can manage. This relay is not a thermostat but a powerful addition to your heating setup.
It connects easily to SunStat thermostats like Connect Plus, Connect, and Command. Each relay needs a 20-amp circuit and its own breaker. It also uses 915MHz wireless tech to link with the ConnectPlus Thermostat for Wi-Fi control.
With this relay, you can heat up to 300 sq. ft. at 240V or 150 sq. ft. at 120V. You can even daisy-chain up to ten relays for larger spaces. SunTouch offers reliable heating solutions with 30+ years of experience.
| Pros | Cons |
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Perfect For:
The SunTouch SunStat Relay R4 is perfect for homeowners and contractors who want to expand their floor heating systems. It’s ideal for large spaces needing reliable, wireless control.
Ready to Purchase?
5. 2 Pack 24V Fan Relay AC Switch SPST Fit for Fan Control HVAC Coleman Furnace Blower Humidifier Goodman Blower Heating Sequencer Relay 90-980 Isolation Re-Lay AC Switch SPST
Control your HVAC system with ease using our 24V fan relay. It’s compatible with many devices, from air conditioners to furnaces. This high-quality switch ensures efficient fan operation.
Simple to install, this relay is perfect for DIY projects. Its compact design and clear wiring diagram make it user-friendly.
| Pros | Cons |
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Perfect For:
This 2 Pack 24V Fan Relay is perfect for anyone needing reliable fan control in their HVAC systems. Whether you’re a DIY enthusiast or a professional, it’s easy to install and works seamlessly with heating, cooling, or appliance setups.
Ready to Purchase?
6. Electric Heat Relay, DPST (240VAC)
The Electric Heat Relay is a DPST device made for electric heating. It works with 240VAC power. This relay is reliable and efficient.
It has a 45-second time delay for smooth operation. The 18-inch leadwires make wiring simple. It works in temperatures from -20° to 120°F.
This relay is easy to install and built to last. It’s a great choice for electric heating systems.
| Pros | Cons |
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Perfect For:
This 240V relay is perfect for electric heaters that need a 45-second delay. It is also good for heating and cooling workers who need 18-inch lead wires and a relay that works from -20°F to 120°F.
Ready to Purchase?
7. Upgrade SR501-4 Switching Relay, 1 Zone, Compatible with Taco SR501, SR5014
This Switching Relay fits perfectly in place of your old Taco SR501 part. It works just like the original and needs no changes to your system.
Control just one zone of your home’s heating system. It keeps your house warm and comfortable in every room.
Easy to install with simple wiring. Built to last season after season. Works with standard HVAC systems.
| Pros | Cons |
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Perfect For:
This relay is perfect for heating pros and careful home handymen who need to replace a Taco SR501 in a one-zone hot water system. It has clear wiring and steady 24V power.
Ready to Purchase?
8. HUAREW 24V Fan Relay 90-380 AC Fan Relay AC Switch SPST for Fan Control HVAC Coleman Furnace Blower Humidifier Goodman Blower Heating Sequencer Relay
The HUAREW 24V Fan Relay is a reliable replacement part for your HVAC system. It works with 24VAC and ensures circuit safety. This relay is easy to install and use.
Made from high-quality metal, it’s compact and lightweight. Its waterproof design adds extra durability for long-lasting use.
It’s compatible with many systems, like air conditioners and furnaces. Follow the clear wiring diagram for quick setup.
| Pros | Cons |
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Perfect For:
This HUAREW 24V Fan Relay is perfect for homeowners and HVAC technicians who need a reliable replacement part for their heating or cooling systems. It’s easy to install and works with many devices, making it a great choice for quick fixes.
Ready to Purchase?
9. 90370 24V AC HVAC/R General Purpose Fan Relay SPDT 12A Load
This is a 90370 24V AC HVAC/R General Purpose Fan Relay. It works with many heating and cooling systems. The coil voltage is 24V AC.
It has SPDT contacts with 12A load rating. Use it for fan control in HVAC units.
The terminals are clearly marked. A wiring diagram is printed on the housing. Easy to install and replace.
| Pros | Cons |
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Perfect For:
This 90370 fan relay is perfect for anyone fixing heating, cooling, or ventilation systems. It works with 24V AC setups and is easy to install.
Ready to Purchase?
10. 77119 Heater Relay Board for IQ2020 of Watkins Control Box 2001-2009, Includes Power Jumpers and Screws, Replaces 74618 73577
The 77119 Heater Relay Board is a complete installation kit for Watkins IQ2020 control boxes (2001–2009.5). It includes an upgraded board, power jumpers, and shortened screws for a secure fit.
This reliable replacement ensures your spa heater runs smoothly. It’s easy to install and improves heater performance with a more efficient design.
| Pros | Cons |
|---|---|
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Perfect For:
This 77119 Heater Relay Board is perfect for spa owners with an IQ2020 control box (2001–2009.5) who need a reliable replacement to keep their spa heater running smoothly. It’s easy to install and ensures consistent water temperature for a comfortable spa experience.
Ready to Purchase?
Buying Guide
Heating relays are key to a cozy home. They connect your thermostat to your heating system, ensuring comfort and efficiency. Choosing the right one can upgrade your setup.
Factors to Consider When Buying Heating Relays:
– Compatibility: Ensure the relay works with your thermostat and heating system. Check voltage and wiring requirements.
– Voltage: Match the relay’s voltage to your system (e.g., 120V, 240V). This ensures safe and efficient operation.
– Transformer: Look for built-in transformers for easy setup. They simplify installation and reduce extra costs.
– Installation: Choose relays with clear instructions and included hardware. Easy installation saves time and effort.
– Durability: Opt for relays with sturdy enclosures, like polycarbonate, for long-lasting use.
– Features: Consider extras like LED indicators, time delays, or Wi-Fi control for added convenience.
– Purpose: Select relays designed for your specific need, such as floor heating, HVAC, or electric systems.
– Brand Reliability: Trust brands with a proven track record for quality and performance.
Engaging Experience:
Finding the perfect heating relay is like unlocking the secret to a cozy home. With the right choice, you’ll enjoy efficient warmth and peace of mind. Let’s make your space comfortable and energy-smart!