Atwood OD-50 On-Demand Tankless Water Heater 50K BTU
Atwood OD-50 On-Demand Tankless Water Heater 50K BTU Atwood OD-50 On-Demand Tankless Water Heater 50K BTU Atwood OD-50 On-Demand Tankless Water Heater 50K BTU Atwood OD-50 On-Demand Tankless Water Heater 50K BTU Atwood OD-50 On-Demand Tankless Water Heater 50K BTU
ITEM #: 90205

Atwood OD-50 On-Demand Tankless Water Heater 50K BTU

$ 850.00
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  • - In Stock! Usually ships In 1-2 Business Days & Free Ground Shipping! -

    Atwood OD-50 On-Demand Tankless Water Heater 50K BTU

    Enjoy instant, endless hot water at the turn of a tap anywhere in your Tiny House or RV.

    Energy-efficient, propane-fired heat exchanger heats water only as it’s needed. Uses no energy to keep water hot in a tank plus it saves up to 100 lbs. of water weight. The flow regulated modulation valve automatically adjusts the burner input based on water flow rate for optimal operating efficiency. High output burner delivers hotter water on cooler days.

    Works just like at home—simply turn on the hot water and mix in cold to reach desired water temperature. Easily adapts to replace virtually any brand of standard 6 or 10 gallon water heater. Includes top adapter plate for 10 gallon and larger tank replacement. Exterior door sold separately. 12-volt.

    Tiny Houses Inside is an Authorized Dealer for Atwood Mobile Products


    • 50K BTU's
    • One size fits all design
    • Only 30 lbs. (no tank full of water)
    • Door Not Included (Select from Options above)
    • Electronic flow sensor
    • High and low heating modes
    • Powerful 50K modulating burner
    • Heat exchanger
    • Consistent hot water


    • Product Dimensions: 12.5"W x 12.5"H x 13.5"D
    • Cut-Out Dimensions: 12.5" - 16" W x 12.5 - 16" H x 16"D (min)
  • Atwood OD-50 On-Demand Tankless Water Heater

  • Why buy from us and not some other store?

    We're Tiny House owners ourselves and know the unique challenges faced every day by Tiny House owners. We pre-screen the best products for your tiny house's needs, like power consumption, space requirements, and most importantly quality you can depend on.

    We are an authorized dealer for all of the brands we represent. Meaning, we have the complete support of the manufacturers and should something be less than perfect, we got your back!

    We offer the Best Price available for you, and if you happen to find a lower price elsewhere, we guarantee a price match with our Best Price Guarantee!  Our pricing includes no-taxes (except CA - sorry, Uncle Sam wants to be paid too), Free Shipping and complete support from us and the manufacturer.

    We guarantee amazing service, support and dedication from our team and the people that make your Tiny House furnishings.

    Just because your house is tiny, doesn't mean the support you receive should be.

    Please let us know if you have any questions or need help choosing the right products for your Tiny House. 


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  • Shipping & Returns

    Order Confirmation:

    As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 14 business days), we will process the charges and submit the order for shipment.

    Order Shipment:

    If your order is stock and we process the charges to your credit card, it will ship within fourteen business days from the date of your order.  We will send tracking information to the e-mail you provide within 24 hours of your order leaving the warehouse.  If you do not receive tracking information from us within fifteen business days of your order, feel free to follow up with us at


    Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery.  If your item(s) do arrived damaged, please send photos to and we will process an insurance claim on your behalf.

    Cancellations & Refunds:

    All orders cancelled after 48 hours are subject to a $20 administration fee, whether or not your order has shipped.  If you order has shipped, you (the buyer) will also be responsible for actual return shipping charges. Refunds will only be issued to the original credit card that you use when placing your order.