Aqua-Hot heater replacement systems displayed with logo for authorized service center.

Aqua-Hot Heaters | Replacement Diesel & Electric RV Heating Systems

Find Your Aqua-Hot Heater or Replacement Model

Use the filters on the left (or tap Filters on mobile) to locate your Aqua-Hot heater model. Once selected, you’ll see:

Your current Aqua-Hot model — active or discontinued
🔄 Recommended replacement unit(s) — factory-approved alternatives
🔌 Required harness or pin kits — listed under “For Upgrade”

If your exact unit isn’t listed, choose the closest match to view the recommended factory replacement. Each product page includes lead time, upgrade notes, and technical specifications.

All Aqua-Hot diesel and electric hydronic heaters in this collection are OEM-grade replacements — engineered for consistent performance, quiet operation, and long service life in RVs, buses, and luxury motor coaches.

12VDC 1650W electric heater with inner coil and Motoraid for vehicle applications.
Sold out
$9,040.95

Heater,HH 12VDC 1650 W-EL Inner DW-Coil w/Motoraid (HHE-500-09M)

If your unit is sold out or discontinued, choose your model to see the recommended replacement. Some upgrades also require a harness or pin kit, wh...

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$9,040.95
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Heater with inner DW-coil and Motoraide, designed for 12 VDC and 1650 W power.
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$9,384.20

Heater, HH 12 VDC 1650 W-EL Inner DW-Coil w/Motoraide (HHE-500-08M)

This unit has been discontinued. Please see the replacement listed under ‘For Upgrade.’

$9,384.20
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12 VDC heater with Motoraide, model HHE-500-07M, discontinued unit shown.
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$17,175.05

Heater, HH 12 VDC w/Motoraide (HHE-500-07M)

This unit has been discontinued. Please see the replacement listed under ‘For Upgrade.’

$17,175.05
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12 VDC heater with a 1650 W output and inner dual coil design for engine use.
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$9,487.05

Heater, HH 12 VDC 1650 W-EL Inner DW-Coil w/Engine PH (HHE-200-09E)

This unit has been discontinued. Please see the replacement listed under ‘For Upgrade.’

$9,487.05
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12 VDC 1650 W heater with inner DW coil and engine PH, model HHE-200-08E discontinued unit
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$9,816.00

Heater, HH 12 VDC 1650 W-EL Inner DW-Coil w/Engine PH (HHE-200-08E)

This unit has been discontinued. Please see the replacement listed under ‘For Upgrade.’

$9,816.00
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12 VDC heater with engine preheat feature, designed for efficient warming.
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$18,303.60
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12 VDC heater with two elements, designed for recon applications.
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$8,086.00

Heater, AH 12 VDC 2-Element Recon (AHE-120-03X)

If your unit is sold out or discontinued, choose your model to see the recommended replacement. Some upgrades also require a harness or pin kit, wh...

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$8,086.00
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12 VDC heater with two heating elements, model AHE-120-04X, in a compact design
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$8,086.00
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Diesel engine Model 250D with a compact design and visible control panel features.
Save $222.73
$5,722.72
$5,499.99

Model 250D (Diesel) - (AHE-250-D03)

If your unit is sold out or discontinued, choose your model to see the recommended replacement. Some upgrades also require a harness or pin kit, wh...

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$5,722.72
$5,499.99
Save $222.73
Diesel engine Model 250D with a compact design and visible control panel features.
Save $222.73
$5,722.72
$5,499.99
Save $222.73
Compact 125D diesel hydronic heater with durable metal casing and control panel display
Save $211.38
$4,707.37
$4,495.99
Save $211.38
Aqua-Hot Hydronic-D 12V heater with dual electric elements and integrated diagnostics.
Save $254.13
$11,854.12
$11,599.99

Aqua-Hot Hydronic-D 67.5K BTU 12V Heater (AHE-675-D04)

The Aqua-Hot Hydronic-D 67.5K BTU 12V Heater (AHE-675-D04) combines diesel and electric heating for maximum comfort and efficiency. Equipped with a...

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$11,854.12
$11,599.99
Save $254.13
Aqua-Hot Hydronic-D 60K BTU 12V diesel heater with dual 2000W electric elements for RVs
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$8,244.00

Aqua-Hot Hydronic-D 60K BTU 12V Heater (AHU-600-D01)

Aqua-Hot Hydronic-D 60K BTU 12V Heater (AHU-600-D01) Intro Paragraph: The Aqua-Hot Hydronic-D 60,000 BTU 12V Heater (part AHU-600-D01) offers depen...

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$8,244.00
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24 VDC heater with three zones, designed for efficient heating in various applications.
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$8,139.00

Heater, 24 VDC, 3-Zone, Recon (AHE-200-00S)

If your unit is sold out or discontinued, choose your model to see the recommended replacement. Some upgrades also require a harness or pin kit, wh...

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$8,139.00
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12 VDC heater with adjustable power from 2 to 2000 watts in a compact design
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$7,876.00
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Three-zone heater with a 12V engine, featuring a rugged design for outdoor use.
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$7,088.00
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Hydronic-D 45.0 K-BTU 12 VDC 1650 W electric hydronic heater unit.
Sold out
$7,058.99

Heater, Hydronic-D 45.0 K-BTU 12 VDC 1650 W-EL (AHE-400-D01)

⚠️ Manufacturer Special Order – Final SaleThis product is ordered directly from the manufacturer and is non-returnable.By purchasing this item, you...

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$7,058.99
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