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Thermistor Wire for Aquastats, Woodmaster, Dixell
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product Description Thermistor 3" Probe with 6' wire to monitor temperature. Typical Applications Used on wood furnaces with electronic control panels Features Works with Dixwell (AQ004 & WoodMasters WMAQ004) and Love contollers (AQLove) It is 3" long Has a 6'...

$25.99$21.99
Love Controller TS2-010
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-12%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dwyer

Product DescriptionThis is a direct replacement Digital Controller for all Cozeburn and Empyre Outdoor Wood Boilers. Specifically programmed to be used with the Cozeburn & Empyre Outdoor Wood Furnaces. Used to control water temperature and water temperature differentials. This is...

$89.99$79.99
Woodmaster ETC Control Panel
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-23%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: WoodMaster

Product DescriptionWoodMaster ETC Panel is used with the WoodMaster 3300, 4400, 5500 and 6500 models.Typical ApplicationsWood furnace electronic controllerFeatures Extremely easy to install with the quick connect. (seen in Picture) Comes pre programed and ready to go.

$399.99$310.95
Ranco ETC 111000-000 Digital Temperature Controller 120V
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-18%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Ranco

Product Description The Ranco ETC 111000-000 is a microprocessor based temperature controller suitable for switching 120 Volts at up to 16 Amps for heating or cooling applications making it suitable for a wide range of applications. This is a great...

$139.99$114.99
WoodMaster Digital Aquastat
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-13%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dixell

Product DescriptionWoodMaster Digital Controller - A Dixell Controller XR30CX, specifically programmed to be used with the WoodMaster Outdoor Wood Furnaces. Used to control water temperature and water temperature differentials.The WoodMaster Aquastat/Temperature gauge. Controls wood boiler temperatures. It is preset to...

$159.99$139.95
Ranco ETC 112000-000 Digital Temperature Controller 24V
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Ranco

Product Description The Ranco ETC 112000-000 is a microprocessor-based temperature controller suitable for switching 24 Volts at up to 16 Amps for heating or cooling applications making it suitable for a wide range of applications. This is a great universal...

$149.99$129.99
Strap-On Aquastat- Honeywell L6006C1018
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-16%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Honeywell

Overview Aquastat® Controllers are immersion type devices for limiting or regulating the temperature of liquids in boilers, storage tanks, and other applications where temperature control is required. Features Totally enclosed Micro Switch™ snap-acting switches operate on temperature rise to setpoint....

$189.99$159.99
Stainless Steel Dry Well 1/2 NPT, 2.5" long
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-43%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

DW12 Stainless Steel Dry Well - These are most commonly used with pools and spas. Mounted in a tee in the water stream and probe mounted inside to monitor pool or spa temperature. 1/2” MNPT, 1 3/4” probe length. This...

$46.99$26.99
Thermistor Wire for Digital XR40CX (AQ044AC)
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-34%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dixell

Product Description Thermistor 1" Probe with 5' wire is used to monitor temperature. It is compatible with the Dixwell XR40CX (AQ044AC) controller. Typical Applications Used in refrigeration and air conditioning systems. Features Works with Dixwell controllers It is 1" long...

$23.99$15.99
Dixell Controller XR40CX for Wood Boilers
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-21%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Dixell

Product Description Dixell Controller XR40CX is used on the wood furnaces to control water temperature and water temperature differentials. The Advantage over the Dixell XR30CX is the XR40CX allows you 2 switches instead of one. Basically you have this turn a...

$150.00$119.99
DIY Auto Damper Kit with Aquastat for Wood Boilers
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

Product DescriptionThe Kit Includes: AQ007 Ranco Digital Controller (Which controls the Water Temp of your Boiler) DW1204 Stainless Dry well for Ranco controller (This holds the Temp Prob of the Digital controller) FC546 Fan Cover for Dayton Fan (This cover...

$265.99$231.90
Stainless Steel Dry Well 3/4" NPT 4" Long
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-22%
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

DW3404 Stainless Steel Dry Well - These are most commonly used with pools and spas. Mounted in a tee in the water stream and probe mounted inside to monitor pool or spa temperature. 3/4” MNPT, 2 3/4” probe length. This...

$46.99$36.99
Copper Immersion Well 1/2" MPT
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

IW1203 Copper Immersion Well 1/2" MPT- These are most commonly used with Aquastats. 1/2” MPT, 3" max insertion/bulb length. Bulb diameter 3/8", Insulation depth 1". May be used with SKU: AQ11D18-1

$31.99
DIY Kit with Door to Build Your Own Wood Boiler or Furnace
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: Alternative Heating & Supplies

Product Description Wood Boiler Door with DIYKitComplete all in one… Build your own wood boiler or furnace and simple mount a door engineered for a wood boiler, The door is 24” x 24”, air cooled steel and high quality welding...

$998.98
Copper Immersion Well 3/4" MPT
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PRODUCT TYPE: Wood Furnace Parts & Accessories

MANUFACTURER: AH&S

IW3403 Copper Immersion Well 3/4" MPT- These are most commonly used with Aquastats. 3/4” MPT, 3" max insertion/bulb length. Bulb diameter 3/8", Insulation depth 1". Can be used with SKU: AQ11D18-1

$35.99

Explore High-Performance Aquastat Temperature Control Options

Your boiler works hard—your control system should work harder. A quality aquastat temperature control helps regulate boiler water temperature, preventing overheating and boosting system efficiency. Whether you’re maintaining a residential system or working on a larger application, these controls are key to safe and stable operation.

Aquastats are compatible with most boiler setups, including pressurized, non-pressurized, and hydronic heating systems. They’re easy to install and even easier to rely on when the temps drop.

We carry trusted options, including the well-known Honeywell Aquastat Controller, which pairs easily with a wide range of boilers and delivers consistent performance.

Need a replacement? Check out our full selection of Aquastats and Temperature Controllers.

Boiler and Heater Control Panels Built for Precision

A boiler control panel is your system’s command center. If you're running a heater control system, you need equipment that's reliable, easy to wire, and built to handle daily use. Our control panels are designed for straightforward setup with no-nonsense performance.

They help prevent common issues like short cycling, inaccurate readings, and overheating. Every heater control panel we carry supports efficient fuel use, consistent temperature output, and overall peace of mind, especially when paired with a proper boiler temperature controller.

Here’s what sets them apart:

  • Simple layout and reliable wiring connections
  • Works with most wood boiler systems
  • Designed for long-term field performance

Need tools or parts to finish the job? We’ve got a full line of Tools & Accessories that pair perfectly with our panels and controllers.

Shop Trusted Brands and Expert-Approved Solutions

When you order from ALT Heat, you’re getting parts that work the first time and keep working. Our lineup includes temperature controllers and hydronic heating control components from brands you know and trust. These aren’t overbuilt or overpriced, they’re built for real use in real boiler systems.

Our support team is also ready to help. If you're unsure which panel fits your system or need advice on wiring a heater control system, just ask. We're happy to walk you through what you need, without pushing what you don’t.

And if you're doing a full setup or system upgrade, don't forget to browse our full line of Heating and Plumbing Parts to complete your order with quality components that match.