Heating and Cooling› Heaters

AQUA HOT

SYSTEM 125D N DIESEL HYDRONIC

$4,426.00

SKU: A0EC AHE-125-DN2

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Aqua-Hot 125D (Diesel) Hydronic Heating System is used in RVs and motorhomes to provide on-demand interior heat and continuous domestic hot water. It is a compact, diesel-fueled unit designed for smaller coaches and applications, requiring approximately 4 gallons of red or green propylene glycol antifreeze. Professional installation is recommended.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAQUA HOT
Part NumberA0EC AHE-125-DN2

Videos

Hydronic vs Air Heater | Which is the Best Van Heating Option

Hydronic vs Air Heater | Which is the Best Van Heating Option
Aqua-Hot Gen1 Installation Video with Sarah Yak

Aqua-Hot Gen1 Installation Video with Sarah Yak

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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