{#% include 'elevar-head' %} Aqua-Hot Parts for Sale Online - Fuel Filters, Pumps, & More | Hydronic Heating Warehouse

All Aqua-Hot Parts

PLE-100-905-FRU BUEHLER C20 PUMP RETRO FIT KIT
PLE-100-905-FRU BUEHLER C20 PUMP RETRO FIT KIT
$188.00

PLE-100-905-FRU BUEHLER C20 PUMP RETRO FIT KIT

BUEHLER C21 400 - 450 Pump Retro Fit Kit. New Style Pumps they are used on all new aqua-hot and hydro-hot systems. This can be used as a circulatio...

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$188.00
1/2" CONTROL THERMOSTAT - BLACK WIRE
1/2" CONTROL THERMOSTAT - BLACK WIRE
Save 5%
$60.64
$57.74

1/2" CONTROL THERMOSTAT - BLACK WIRE

Thermostat, Control 1/2" NPT, 175̴º F 188 DEGREE This part #ELE-014-010,  Thermostat, Brass Control, 175* – 188* , Is compatible with all Aqua-Hot...

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$60.64
$57.74
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Electronic 12 VDC Control Board ELE-PC4-010-AA
Electronic 12 VDC Control Board ELE-PC4-010-AA
Save 7%
$416.17
$385.15

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

Electronic Controller PC Board, 12 VDC, Aqua Hot  RV Hydronic Heating – ELE-PC4-010-AA Item # ELE-PC4-010-AA  Your Hydronic Heating System, whethe...

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$416.17
$385.15
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Annual Service Kit - Pink
Annual Service Kit - Pink
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$249.98
$240.75

Annual Service Kit - Pink

1 - Fuel Filter (FLE-120-100) 1 - Fuel Nozzle (WPX-886-41A) 1 - Electrode Adjustment Tool (WPX-310-646) 1 - Burner Gasket (HDE-700-205) 1 - Porta...

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$249.98
$240.75
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General Fuel Filter Kit
General Fuel Filter Kit
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$66.31
$62.99

General Fuel Filter Kit

BE PREPARED AND CARRY A SPARE This General Kit Includes: 1 - General Fuel Filter 1- 0.35 Fuel Nozzle 2 - Left Grommets 2 - Right Grommets 1 - Photo...

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$66.31
$62.99
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Electric Heating Element 120 VAC / 1650 Watt
Electric Heating Element 120 VAC / 1650 Watt
Save 3%
$41.42
$39.99

Electric Heating Element 120 VAC / 1650 Watt

Electric Heating Element 120 VAC / 1650 Watt  This is a list of model numbers that works with this part. Aqua Hot 431/12AHE-100-00SAHE-100-01SAHE-...

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$41.42
$39.99
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Cozy III Heat Exchanger
Cozy III Heat Exchanger
Save 8%
$134.57
$124.22

Cozy III Heat Exchanger

For use in living areas, bedrooms, bays and where ducting is necessary. BTU's: 8,200 CFM: 68 Amps: 0.5 Width: 13.125 Height: 3.625 Depth: 6.5 Bar...

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$134.57
$124.22
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BUEHLER C21 PUMP PLX-100-900
BUEHLER C21 PUMP PLX-100-900
Save 9%
$142.90
$130.00

BUEHLER C21 PUMP PLX-100-900

Buehler C21 pump. This is the replacement pump for heaters that already have this pump installed.  If you are replacing older versions of pumps for...

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$142.90
$130.00
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Racor Kit
Racor Kit
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$82.10
$76.99

Racor Kit

This Racor Kit Includes: 1 - Racor Fuel Filter 1- 0.35 Fuel Nozzel 2 - Left Grommets 2 - Right Grommets 1 - Photo Disk Retail Price: $82.10 Your Co...

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$82.10
$76.99
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Brass Float Switch with connectors ELE-800-002
Brass Float Switch with connectors ELE-800-002
Save 15%
$165.41
$140.50

Brass Float Switch with connectors ELE-800-002

Float Switch, Brass fits on Hydro Hot, Aqua Hot Heating Systems. Models HHE-200-09E, HHE-500-09M,  AHE-100-03S, AHE-100-04S, HHE-200-08E, & HH...

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$165.41
$140.50
Save 15%
Webasto Combustion Blower Motor
Webasto Combustion Blower Motor
Save 1%
$520.00
$514.69

Webasto Combustion Blower Motor

Comb Air 12V Motor DBW 2010 - WPX-425-060   Webasto Combustion Blower Motor

$520.00
$514.69
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Radiator Cap 13# w/ Lever
Radiator Cap 13# w/ Lever
Save 4%
$28.20
$27.20

Radiator Cap 13# w/ Lever

13 # Radiator cap with red lever for pressure release

$28.20
$27.20
Save 4%
High Limit VAC Thermostat 215ºF
High Limit VAC Thermostat 215ºF
Save 52%
$38.00
$18.39

High Limit VAC Thermostat 215ºF

Thermostat, VAC High Limit 215ºF, w/spade connectors

$38.00
$18.39
Save 52%
Annual Service Kit - Green
Annual Service Kit - Green
Save 4%
$249.98
$240.75

Annual Service Kit - Green

1 - Fuel Filter (FLE-120-100) 1 - Diesel Nozzle (WPX-886-41A) 1 - Electrode Adjustment Tool (WPX-310-646) 1 - Burner Gasket (HDE-700-205) ...

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$249.98
$240.75
Save 4%
Pressure Relief Valve 125psi
Pressure Relief Valve 125psi
Save 13%
$41.99
$36.36

Pressure Relief Valve 125psi

Pressure relief valve 125psi.

$41.99
$36.36
Save 13%
White Dot VAC Hi-Limit Thermostat AH
White Dot VAC Hi-Limit Thermostat AH
Save 2%
$36.00
$35.16

White Dot VAC Hi-Limit Thermostat AH

Thermostat, VAC Hi Limit, 230*F, White Dot, AH

$36.00
$35.16
Save 2%
Brass Check Valve
Brass Check Valve
Save 8%
$33.50
$30.92

Brass Check Valve

Brass Check Valve 1/2" x 1/2" (f) NPT

$33.50
$30.92
Save 8%
Electromechanical 30 Amp Relay
Electromechanical 30 Amp Relay
Save 1%
$31.56
$31.24

Electromechanical 30 Amp Relay

Electromechanical 30 amp relay. 110 / 277 element relay controls power to element circuit  

$31.56
$31.24
Save 1%
Low Temp Cut off Thermostat
Low Temp Cut off Thermostat
Save 1%
$24.53
$24.28

Low Temp Cut off Thermostat

Low Temp Cut off Thermostat w/Spade Connectors

$24.53
$24.28
Save 1%
High Limit VAC Thermostat 220*F
High Limit VAC Thermostat 220*F
Save 0%
$46.00
$45.87

High Limit VAC Thermostat 220*F

High limit VAC thermostat 220*F.

$46.00
$45.87
Save 0%
Electronic Controller Assembly Faceplate SME-200-501
Electronic Controller Assembly Faceplate SME-200-501
Save 17%
$66.45
$55.25

Electronic Controller Assembly Faceplate SME-200-501

Electronic controller assembly faceplate. This is the newest cover that has the plastic lenses that makes the board easier to read as each light l...

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$66.45
$55.25
Save 17%
Blue Dot VDC Control Thermostat AH
Blue Dot VDC Control Thermostat AH
Save 1%
$71.50
$70.79

Blue Dot VDC Control Thermostat AH

Thermostat, VDC Control, 190*F, Blue Dot, AH

$71.50
$70.79
Save 1%
BUEHLER C20 PUMP HARNESS
Save 2%
$90.66
$88.99

BUEHLER C20 PUMP HARNESS

Buehler C20 pump harness.

$90.66
$88.99
Save 2%
5 Quart Expansion Tank 5/16"
5 Quart Expansion Tank 5/16"
Save 7%
$129.00
$119.89

5 Quart Expansion Tank 5/16"

Tank, Expansion 5qt AHE-100-02S & Older

$129.00
$119.89
Save 7%
Red Dot VAC Control 198*F Thermostat AH
Red Dot VAC Control 198*F Thermostat AH
Save 2%
$68.00
$66.73

Red Dot VAC Control 198*F Thermostat AH

Thermostat, VAC Control, 198*F, Red Dot, AH

$68.00
$66.73
Save 2%
Black Dot VDC Hi-Limit Thermostat AH
Black Dot VDC Hi-Limit Thermostat AH
Save 1%
$71.50
$70.79

Black Dot VDC Hi-Limit Thermostat AH

Thermostat, VDC Hi-Limit, 230*F, Black, AH

$71.50
$70.79
Save 1%
High Limit Thermostat VAC 220F
High Limit Thermostat VAC 220F
Save 1%
$46.33
$45.87

High Limit Thermostat VAC 220F

Thermostat, High Limit VAC Kit 220* H

$46.33
$45.87
Save 1%
13lb Radiator Cap - DISCONTINUED
Sold out
$24.95
$10.80

13lb Radiator Cap - DISCONTINUED

Standard radiator cap 13 # Direct Replacement Radiator Cap: PLX-109-229-L

$24.95
$10.80
Sold out
12v Silent Whisper Cozy Fan
12v Silent Whisper Cozy Fan
Save 8%
$21.80
$20.12

12v Silent Whisper Cozy Fan

Fan, Cozy, Silent Whisper Quiet 12V Replacement Fan for Cozy III Heat Exchanger  Heat Exchanger: EXE-103-0EX Requires 2 fans for the heat exchanger

$21.80
$20.12
Save 8%