Genuine Aqua-Hot Parts for Reliable Hydronic Heating
Keep your Aqua-Hot system performing like new with our full selection of OEM Aqua-Hot parts and accessories. Each component is engineered to fit perfectly, ensuring consistent heat, efficient operation, and long-term reliability.
Whether you’re performing annual maintenance, troubleshooting a heating issue, or rebuilding your entire system, you’ll find every part you need — from filters and nozzles to pumps, thermostats, sensors, and circuit boards.
✅ Genuine OEM Aqua-Hot replacement parts
🔧 Compatible with Aqua-Hot & Hydro-Hot systems
🔥 Maintain peak heating and hot water performance
🧰 Ideal for RVs, coaches, and hydronic service centers
Use the filters to quickly locate the right part for your specific model. Each product page includes part numbers, compatibility notes, and installation details to help you complete your repair confidently.
For annual maintenance, explore our Aqua-Hot Service Kits and Cost-Saving Bundles — curated for convenience and long-term system protection.
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Replacement label for the 3 Qt. expansion tank used in Aqua-Hot and Hydro-Hot hydronic heating systems. Restores factory identification markings in...
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Replacement faceplate (SME-200-501) for the electronic control assembly on Aqua-Hot hydronic heating systems. This panel provides the user interfac...
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Refractory insulation for Aqua-Hot hydronic heating system combustion chambers. This high-temperature insulation lines the interior of the combusti...
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For use with models 375 & 525 ATTN: Gasket only used on models that have Beckett burners
Adjustable tempering valve (PLX-4A8-180) with a range of 120°F to 160°F for Aqua-Hot hydronic heating systems. Mixes hot and cold water to deliver ...
View full detailsESBE 120°F tempering valve with 1/2-inch male NPT connections for Aqua-Hot hydronic heating systems. Blends hot and cold water to deliver a fixed 1...
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Vented overflow cap with tether for Aqua-Hot and Hydro-Hot hydronic heating system expansion tanks. The vented design allows controlled pressure re...
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Tan metal cozy grille (10" x 2") (EXX-950-411) for Aqua-Hot hydronic heating systems. This low-profile metal grille is designed for flush-mount ins...
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Black plastic cozy grille (3.5" x 15") for Aqua-Hot hydronic heating systems. Mounts over the cozy plenum heat exchanger outlet to distribute warm ...
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Black plastic cozy grille (3.5" x 21.5") for Aqua-Hot hydronic heating systems. This larger grille covers wider cozy plenum installations and distr...
View full details1-1/2 inch thick Micro Aire duct board (48" x 120") with foil backing for superior insulation in Aqua-Hot and Hydro-Hot heated air duct systems. Th...
View full details1-inch thick Micro Aire duct board (48" x 120") with foil backing for use in Aqua-Hot and Hydro-Hot hydronic heating installations. This rigid fibe...
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Replacement blower wheel fan motor (HDX-162-511) for Aqua-Hot heating systems. Powers the blower fan that circulates warm air through the cabin hea...
View full detailsModified brass insert fitting for Aqua-Hot and Hydro-Hot hydronic heating systems. This specialty fitting is designed for specific plumbing connect...
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Bend support for 5/8-inch polytube used in Aqua-Hot and Hydro-Hot hydronic heating systems. Prevents kinking and maintains proper flow when routing...
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Pump bracket isolator (PLX-100-837) for Aqua-Hot hydronic heating systems. These rubber isolators mount between the pump bracket and the chassis to...
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Engine pump supply pipe for Aqua-Hot hydronic heating systems. This formed pipe connects the engine coolant supply to the Aqua-Hot unit, enabling e...
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3-quart expansion tank with integrated internal fluid level sensor (PLE-063-200) for Aqua-Hot hydronic heating systems. Features 5/8-inch barb fitt...
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Cozy plenum assembly for Aqua-Hot hydronic heating systems. The cozy plenum is a compact heat exchanger with integrated fan that mounts in cabinets...
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3-quart expansion tank with sensor kit (MSE-200-OFB) for Aqua-Hot and Hydro-Hot hydronic heating systems. Provides coolant expansion capacity and f...
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Replacement label for the 5 Qt. expansion tank used in Aqua-Hot hydronic heating systems. Restores factory identification markings including fill l...
View full detailsReplacement brush set for March 809 high-speed circulation pumps used in Aqua-Hot and Hydro-Hot hydronic heating systems. Motor brushes wear over t...
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