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FREE USPS GROUND ADVANTAGE SHIPPING on items OVER $75.00 (UNDER 1 LB.) based on weight per item. If you can't find a part you are looking for, call or text us at 970-518-3085!
FREE USPS GROUND ADVANTAGE SHIPPING on items OVER $75.00 (UNDER 1 LB.) based on weight per item. If you can't find a part you are looking for, call or text us at 970-518-3085!

Shipping & Delivery Updates

We understand how important it is for you to receive your orders on time, and we sincerely apologize for any delays you may be experiencing with your shipments.

Please note that once packages leave our facility, they are handled by third-party carriers, such as the United States Postal Service (USPS). While we do our best to ensure timely dispatch, delivery times are ultimately out of our control once the package is with the carrier.

We greatly appreciate your understanding and patience. Please feel free to reach out to our customer service team if you have any concerns or need assistance tracking your package.

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Hydro-Hot

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Buehler Pump Kit, Retrofit Kit - PLE-100-905-FRU

Aqua-Hot
$205.00
$205.00 - $205.00
$205.00
$194.75
$194.75 - $194.75
$194.75

The Buehler Pump, Retrofit Kit is designed to upgrade older circulation, stir, or engine preheat pumps in Aqua-Hot & Hydro-Hot hydronic heating...

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$205.00
$205.00 - $205.00
$205.00
$194.75
$194.75 - $194.75
$194.75
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Save 24% Save %

Annual Service Kit, Garber Fuel Filter & Nozzle .35 - John's Custom Kits - JCH-GRB-KIT

Aqua-Hot
$62.09
$62.09 - $62.09
$62.09
$47.35
$47.35 - $47.35
$47.35

This kit is for performing an annual service on the Aqua-Hot and Hydro-Hot heating systems. Please verify fuell filter on rv before purchase. This ...

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$62.09
$62.09 - $62.09
$62.09
$47.35
$47.35 - $47.35
$47.35
Save 24% Save %
Save 10% Save %

Electronic Control PC Board, 12 VDC - ELE-PC4-010-AA

Aqua-Hot
$561.08
$561.08 - $561.08
$561.08
$504.97
$504.97 - $504.97
$504.97

The Electronic Control PC Board is a direct replacement for select Aqua-Hot & Hydro-Hot hydronic heating systems (12VDC). Refer to the compatib...

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$561.08
$561.08 - $561.08
$561.08
$504.97
$504.97 - $504.97
$504.97
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Save 20% Save %

Electric Heating Element, 120 VAC / 1650 Watt - ELX-2E7-540

Aqua-Hot
$43.25
$43.25 - $43.25
$43.25
$34.60
$34.60 - $34.60
$34.60

The 120 VAC / 1650 Watt electric heating element is designed for use in the Aqua-Hot and Hydro-Hot hydronic heating systems. This component efficie...

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$43.25
$43.25 - $43.25
$43.25
$34.60
$34.60 - $34.60
$34.60
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Save 10% Save %

Control Thermstat, 175-188F - ELE-016-012

Aqua-Hot
$64.88
$64.88 - $64.88
$64.88
$58.39
$58.39 - $58.39
$58.39

The 175-188°F Control Thermostat is a direct replacement and is a crucial component for maintaining precise temperature regulation in your Aqua-Hot...

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$64.88
$64.88 - $64.88
$64.88
$58.39
$58.39 - $58.39
$58.39
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Save 10% Save %

Buehler Pump Assembly with Harness and Terminals - PLE-100-902

Aqua-Hot
$145.52
$145.52 - $145.52
$145.52
$130.97
$130.97 - $130.97
$130.97

The Buehler Pump Assembly designed for Aqua-Hot hydronic heating systems. This assembly includes the pump, harness, and terminals, facilitating eff...

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$145.52
$145.52 - $145.52
$145.52
$130.97
$130.97 - $130.97
$130.97
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Save 20% Save %

Garber R Fuel Filter - FLE-120-100

Aqua-Hot
$35.44
$35.44 - $35.44
$35.44
$28.35
$28.35 - $28.35
$28.35

The Garber R Fuel Filter is a direct replacement part for maintaining clean fuel delivery to the Aqua-Hot & Hydro-Hot hydronic heating systems....

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$35.44
$35.44 - $35.44
$35.44
$28.35
$28.35 - $28.35
$28.35
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Save 10% Save %

220 F Degree High Limit Thermostat - ELE-HLT-322

Aqua-Hot
$52.54
$52.54 - $52.54
$52.54
$47.29
$47.29 - $47.29
$47.29

The 220°F high-limit thermostat is a direct replacement part designed for Aqua-Hot & Hydro-Hot hydronic heating systems. This thermostat serves...

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$52.54
$52.54 - $52.54
$52.54
$47.29
$47.29 - $47.29
$47.29
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Save 42% Save %

Radiator Cap, 13 PSI - PLX-102-229

Aqua-Hot
$30.84
$30.84 - $30.84
$30.84
$18.00
$18.00 - $18.00
$18.00

The 13 PSI radiator cap a direct replacement part designed for use with Aqua-Hot & Hydro-Hot hydronic heating systems. This cap maintains the ...

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$30.84
$30.84 - $30.84
$30.84
$18.00
$18.00 - $18.00
$18.00
Save 42% Save %
Save 20% Save %

Coil Relay, 277 VAC 12VDC 30A - ELX-630-001

Aqua-Hot
$77.61
$77.61 - $77.61
$77.61
$62.09
$62.09 - $62.09
$62.09

The 30-amp coil relay designed to control power within Aqua-Hot & Hydro-Hot hydronic heating systems. This relay operates with a 12V DC coil an...

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$77.61
$77.61 - $77.61
$77.61
$62.09
$62.09 - $62.09
$62.09
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Save 10% Save %

215 F Degree High Limit Thermostat w/Leads – ELE-HLT-426

Aqua-Hot
$26.85
$26.85 - $26.85
$26.85
$24.17
$24.17 - $24.17
$24.17

The 215 F high-limit thermostat a direct replacement part designed for Aqua-Hot & Hydro-Hot hydronic heating systems. This thermostat serves as...

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$26.85
$26.85 - $26.85
$26.85
$24.17
$24.17 - $24.17
$24.17
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Save 30% Save %

Brass Check Valve 1/2 in. x 1/2 in. - PLX-2A1-300

Aqua-Hot
$98.96
$98.96 - $98.96
$98.96
$69.27
$69.27 - $69.27
$69.27

The Brass Check Valve is a direct replacement part designed for maintaining proper coolant flow in hydronic heating systems. Constructed from durab...

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$98.96
$98.96 - $98.96
$98.96
$69.27
$69.27 - $69.27
$69.27
Save 30% Save %
Save 22% Save %

Annual Service Kit, Pink - Johns Custom Kits - JCH-ASK-PNK

Aqua-Hot
$252.95
$252.95 - $252.95
$252.95
$196.13
$196.13 - $196.13
$196.13

This kit includes all the items to perform an annual service. Please verify fuel filter on rv before purchase. The same kit as Aqua-Hot's MSE-ASK-G...

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$252.95
$252.95 - $252.95
$252.95
$196.13
$196.13 - $196.13
$196.13
Save 22% Save %
Save 10% Save %

Pressure Relief Valve, 125 PSI - PLX-111-125

Aqua-Hot
$135.40
$135.40 - $135.40
$135.40
$121.86
$121.86 - $121.86
$121.86

The Pressure Relief Valve is a direct replacement part designed for Aqua-Hot & Hydro-Hot hydronic heating systems. It regulates and maintains w...

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$135.40
$135.40 - $135.40
$135.40
$121.86
$121.86 - $121.86
$121.86
Save 10% Save %
Save 10% Save %

220 F Degree High Limit Thermostat Kit - ELE-ASY-200-FRU

Aqua-Hot
$52.54
$52.54 - $52.54
$52.54
$47.29
$47.29 - $47.29
$47.29

The 220 F Degree High Limit Thermostat Kit is a standard part on the Aqua-Hot & Hydro-Hot heating systems.  -----------------------------------...

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$52.54
$52.54 - $52.54
$52.54
$47.29
$47.29 - $47.29
$47.29
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Save 40% Save %

Mixer Valve, Tempering 145°F - PLX-09P-100

Aqua-Hot
$497.86
$497.86 - $497.86
$497.86
$297.80
$297.80 - $297.80
$297.80

The 145°F tempering mixer valve designed for Aqua-Hot and Hydro-Hot hydronic heating systems. This valve blends hot water from the system's tank wi...

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$497.86
$497.86 - $497.86
$497.86
$297.80
$297.80 - $297.80
$297.80
Save 40% Save %
Save 38% Save %

Brass Float Switch - ELE-800-002

Aqua-Hot
$477.80
$477.80 - $477.80
$477.80
$296.25
$296.25 - $296.25
$296.25

The Float Switch is a safety switch that detects if the tank is full of antifreeze. ---------------------------------------------------------------...

View full details
$477.80
$477.80 - $477.80
$477.80
$296.25
$296.25 - $296.25
$296.25
Save 38% Save %
Save 10% Save %

Cozy III Heat Exchanger - EXE-103-0EX

Aqua-Hot
$153.47
$153.47 - $153.47
$153.47
$138.12
$138.12 - $138.12
$138.12

The Cozy III Heat Exchanger is used for blowing heat from Aqua-Hot, Hydro-Hot, or Webasto heating system. -----------------------------------------...

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$153.47
$153.47 - $153.47
$153.47
$138.12
$138.12 - $138.12
$138.12
Save 10% Save %
Save 49% Save %

Annual Service Kit, Racor Fuel Filter & Nozzle .35 – Johns Custom Kits – JCH-RCR-KIT

Aqua-Hot
$135.85
$135.85 - $135.85
$135.85
$69.55
$69.55 - $69.55
$69.55

This kit is for performing an annual service on the Aqua-Hot, Hydro-Hot and Webasto diesel burner. Please verify fuel filter on rv before purchase....

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$135.85
$135.85 - $135.85
$135.85
$69.55
$69.55 - $69.55
$69.55
Save 49% Save %
Save 49% Save %

Century Boiler Antifreeze - 100 Transfer Fluid 1gl Pink - MSX-300-270

Aqua-Hot
$91.99
$91.99 - $91.99
$91.99
$47.00
$47.00 - $47.00
$47.00

Century Boiler Antifreeze is Aqua-Hot's new Propylene Glycol Antifreeze that can be put into older heating systems and is needed in the newer Aqua-...

View full details
$91.99
$91.99 - $91.99
$91.99
$47.00
$47.00 - $47.00
$47.00
Save 49% Save %
Save 22% Save %

Garber Annual Service Kit, Green - Johns Custom Kits - JCH-ASK-GRN

Aqua-Hot
$252.95
$252.95 - $252.95
$252.95
$196.13
$196.13 - $196.13
$196.13

This kit includes all the items to perform an annual service. Please verify fuel filter on rv before purchase. The same kit as Aqua-Hot's MSE-ASK-G...

View full details
$252.95
$252.95 - $252.95
$252.95
$196.13
$196.13 - $196.13
$196.13
Save 22% Save %
Save 10% Save %

Low Temp Cut-Off Thermostat Assembly - ELE-000-606

Aqua-Hot
$35.54
$35.54 - $35.54
$35.54
$31.99
$31.99 - $31.99
$31.99

The Low Temp Cut-Off Thermostat Assembly is a direct replacement part in Aqua-Hot & Hydro-Hot hydronic heating systems, designed to monitor and...

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$35.54
$35.54 - $35.54
$35.54
$31.99
$31.99 - $31.99
$31.99
Save 10% Save %
Save 29% Save %

Century Boiler Antifreeze - 100 Transfer Fluid 1qt Pink - MSX-300-275

Aqua-Hot
$55.99
$55.99 - $55.99
$55.99
$39.93
$39.93 - $39.93
$39.93

The Century Boiler Antifreeze 100 Transfer Fluid is a propylene glycol-based antifreeze specifically formulated for use in Aqua-Hot & Hydro-H...

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$55.99
$55.99 - $55.99
$55.99
$39.93
$39.93 - $39.93
$39.93
Save 29% Save %
Save 49% Save %

Century Boiler Antifreeze - 100 Transfer Fluid 1gl Green – MSX-300-300

Aqua-Hot
$91.99
$91.99 - $91.99
$91.99
$47.00
$47.00 - $47.00
$47.00

Century Boiler Antifreeze is Aqua-Hot's new Propylene Glycol Antifreeze that can be put into older heating systems and is needed in the newer Aqua-...

View full details
$91.99
$91.99 - $91.99
$91.99
$47.00
$47.00 - $47.00
$47.00
Save 49% Save %

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