Precision Temp

RV-550 NSP

Floor Vented Tankless Water Heater - RV-550 NSP

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    • Precision Temp RV-550 NSP | Tankless and Floor-Vented | VariFlame Technology | 55,000 BTUs Max Input | Full Gas Modulation System

      The new Precision Temp Wall Vented Tankless Water Heater - RV-550 NSP operates quietly and will give you an endless supply of hot water whether it’s winter, spring, summer, or fall. You can enjoy as many hot showers and hot baths as you want to all year long.

      NSP stands for no sidewall penetration. The NSP is vented through the floor with a 2” exhaust pipe. This is perfect for coaches and trailers with intricate paint patterns or any situation where a smooth, uninterrupted sidewall is important. This can free up cabinet space and provide for less complicated installation.

      We also offer a wall vented version called the Precision Temp RV-550.

      Here's how it works:

      How the Precision Temp RV-550 NSP Tankless Water Heater - Floor Vent Works

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      Product Description

      Hot Water All Year Round - Looking for the best water heater that can give you warm water whether it’s winter or summer? Then check out this brand new Precision Temp Wall Vented Tankless Water Heater - RV-550 NSP. The Precision Temp RV 550 NSP is a tankless wall-vented water heater that is perfectly suited for Tiny Houses, Cabins, and RVs.

      Exceptional Components - The RV-550 NSP comes with exceptional components such as a well-built galvanized body, aluminum-painted access doors, solid copper head exchanger, pilotless ignition, and full gas modulation. In addition, the RV 550 NSP also delivers great power no matter what the season thanks to its ability to produce 55,000 BTUs maximum input and built-in freeze protection.

      Efficient Variflame Technology - The best part about this Precision Temp RV 550 NSP Heater is that it uses VariFlame Technology, an efficient system that will always give you hot water with constant temperature despite changes in the original temperature of the water before it reaches the heater. Tiny House owners love that this product is efficient and that it could be powered by off grid solar solutions. 

      With all of these wonderful features present in the Precision Temp Wall Vented Tankless Water Heater - RV-550 NSP, you will surely be able to enjoy hot water whether the day is as cold as a Minnesota during winter or as warm as the California sun in summer. 

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      Features and Benefits:

    • Designed specifically for Tiny Houses, RVs, Cabins, and more: the Precision Temp RV 550 NSP is floor vented, ensuring your safety while allowing for additional flexibility. Never run out of hot water again!
    • It is also tankless, meaning you’ll be able to save up to 50% the amount of propane while keeping it hot all the time. Lower propane consumption results in fewer fill-ups which will help you save more money. Cha-ching!
    • This water heater comes in a well-built stainless steel galvanized case and features other sturdy components that will stand even the coldest winter weather.
    • It‘s equipped with a Pilotless Ignition system, which ensures that the heater will not turn on unless the hot water outlet is activated.
    • The heater comes with a control that allows you to adjust the water’s temperature exactly where you prefer it to be.
    • Straightforward installation: conveniently installs and vents through the floor with a 2” exhaust pipe.
    • The standard RV-550 takes up half the space and weighs one third as much as a ten-gallon tank. The 550-NSP is even smaller and lighter, and is floor vented through a 2” exhaust pipe. It doesn't require a cover door as it is not needed.
    • To winterize, just open a valve and it drains in seconds. There is no need for a bypass kit. Or you can add antifreeze, but don’t buy extra—it holds less than a pint.
    • This product is proudly made in the USA

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      RV 550 NSP Specifications

      Type Tankless propane-fired water heater with full gas modulation. Vented through floor and cold weather protection.
      Weight 26.5 pounds
      Capacity 55,000 BTUs max input (88°F temperature rise / gal / minute)
      16,000 BTUs min input (26°F temperature rise / gal / minute)
      Dimensions 13.5″ wide x 13.5″ deep x 14.25″ high
      Venting Through the floor by 2″ exhaust pipe, power vented.
      Construction Galvanized case. Head exchanger: Solid copper. Gas train: Stainless flame strips with aluminized steel bodies.
      Fuel Propane
      Water Temperature Infinitely adjustable
      Controls Gas modulation valve assembly initiates spark ignition and varies gas input based on water flow rate, controlling water outlet temperature
      Safety Features Pilotless ignition, completely dormant until water flow is initiated
      ECO high temperature limit switch.
      Instant flame-proofing by flame rectification.
      Pressure relief valve.
      Certified to ANSI Z21.10.3 / CSA 4.3 Standards
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      View RV550's Precision Temp's 2 Year Warranty

      View RV550 FAQ's

      View RV550 Installation Guide

    • Fast Free Shipping and No Taxes:

      • For Inergy products, we match their returns policies.
      • Free shipping for many brands to the contiguous USA. When there is an exception, it will be noted in the product description. We can not offer free shipping to Puerto Rico or Hawaii, but if you really want an item, call us and we'll see what we can do for you.
      • Most orders ship within 2 or 3 days. When there is an exception, it will be noted in the product description.
      • Tracking information will be sent as soon as possible.
      • No taxes, except for Texas.
      • Buy with confidence because we have a price match guarantee.

      Take Note:
      We sell many products that are inherently very difficult to return, such as toilets. Please take advantage of our contact form and number if you need to do additional product research before ordering.

      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 5 business days), we will process the charges and submit the order for shipment.

      Order Shipment:
      If your order is in stock and we process the charges to your credit card, it will ship within five business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address your provide when checking out. If you do not receive tracking information from us within six 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.

      For Inergy products you have 5 days to request cancellation. Added 4/22/2019

      For products over $8000 we can not accept cancelations. Added 4/22/2019

      Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

      Late or missing refunds (if applicable):
      If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.

      If you’ve done all of this and you still have not received your refund yet, please contact us at

      Sale items (if applicable)
      Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

      Exchanges (if applicable)
      We only replace items if they are defective or damaged when they arrive. If you need to exchange it for the same item, send us an email at

      Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must not be missing parts for reasons not due to our error. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase.

      To return your product, you should email us at and you will receive instructions on how to return your item.

      You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

      If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.

      If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.

      If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.

      Additional non-returnable items:
      Gift cards

    • We take every precaution possible to ensure that your order is secure.

      Our security policy is simple: we take every security precaution possible.

      • Your order is secured by Shopify's SSL encryption technology
      • We guarantee orders up to $100,000
      • We have strict standard operating procedures to ensure security

      Online orders are actually safer than in person credit card transactions because your credit card information is immediately encrypted. This means that only an authorized computer by an authorized party could access it.

      If you would still prefer to place an order by phone, please call 940-268-2640

    • Small Homes and Solar's core values are sustainability and customer service.

      Our goal is not only to provide a wide selection of products at competitive prices, but to promote sustainability and environmentalism. We believe a green energy revolution is necessary.

      We guarantee support at all stages of the purchase
      We will answer questions before the purchase, during the purchase, and will continue answering questions after the purchase. Email us at or call 940-268-2640

      We are authorized dealers
      This means that you will receive the full manufacturer warranty with each product.

      Easy orders
      Order through our website, through the phone, or through email. 

      Best price guarantee
      If you see a better price anywhere, leave an order note and we will beat it. If we can not beat it, we will refund your order immediately.

      We are an American company
      Nearly all of our products are shipped from the USA or Canada, meaning relatively quick shipping times. You will not have to wait for an item from China.

      We now offer financing
      We now offer financing through LightStream to make investing in solar or home improvement much easier. 

    Grab this deal today!