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Browse ProductsWater Heaters
Discover wholesale water heaters at National Air Warehouse. Enjoy hot water efficiency and savings. Upgrade your water heating system today!
Talk to an expert
Need help choosing the right system or part? Curious about how shipping works? Call or live chat to speak with one of our knowledgeable professionals, Mon – Fri 8AM to 5PM ET.
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In Stock A.O. SMITH Pilot Assembly Thermopile w/ Tubing (Propane) 100093983 100093983
$102.72
Shipping included
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In Stock AMERICAN STANDARD Piezo Electric Assembly (Igniter) 50315070783 50315070783
$50.45
Shipping included
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In Stock RHEEM EEMAX & ECOSMART 1/2" Inline Flow Regulator w/ 1.0, 1.5, and 2.0 GPM Inserts IFR1-2 IFR1-2
$53.41
Shipping included
In Stock RHEEM EEMAX & ECOSMART 3/4" NPT Inline Flow Regulator w/ 2.0, 3.0, 4.0, and 5.0 GPM Inserts IFR3-4 IFR3-4
$66.33
Shipping included
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In Stock Tankless water heaters and water heater parts
Shop Rheem electric tankless water heaters and genuine replacement parts for Rheem, Ruud, EcoSmart, Eemax, Richmond, Rinnai, A.O. Smith and American Standard water heaters.
Tankless Water Heaters
Rheem Professional Classic electric units in 11, 18 and 24 kW.
Water Heater Parts
Control boards, sensors, gas valves, flame rods, terminal blocks and more.
Water Heater Supplies
Maintenance items such as tankless flushing kits.
Finding the right part
- Part number: the number printed on the old part is the surest match.
- Model and serial: use the numbers on the water heater rating plate. Each product page lists the models it fits.
Shipping and returns
Free shippingIncluded on orders to the continental US.
Fast dispatchParts ship by UPS or FedEx Ground in 1 to 2 business days.
Tampa pickupWill-call pickup at our Tampa warehouse, Monday to Friday.
30-day returnsUnused items in original packaging, within 30 days of delivery. Special-order items are final sale.
Not sure which part you need?Call us with your model number, Monday to Friday, 8am to 5pm ET.