120 VGFCI outlet, no extension cord (PIRIT, Miller)
AI-generated
Winter water hook-up, by the manual
Heated Water Hoses: How They Work, What the Ratings Mean and Which Length to Buy
A heated water hose keeps the water inside it liquid in freezing weather, as long as it is plugged into a 120-volt outlet. This guide compares the hoses by what their makers put in writing: watts, ratings, certifications, warranty and hook-up rules.
01Watts and amps per length, taken from the manuals
02Maker rules on cords, GFCI and coiling, quoted with source
03Temperature ratings labeled as what they are: maker claims
Disclosure: This page contains paid links to Amazon, marked with * or “paid link”. If you buy through them, we earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. This site is financed by these commissions; products are selected by the criteria on our methodology page. How we compare · Learn more
The short version
Measure the distance from spigot to inlet first, then buy the shortest heated hose that covers it. For 25 ft our pick is the Camco 22911, because its listing names NSF/ANSI 61 and a CSA lead-free certification. Plan for about 180 watts per 25 ft, plug into a GFCI outlet without an extension cord, and protect the spigot separately: the hose only heats itself.
What a heated water hose is, and what it is not
The same product is sold as a heated RV water hose, a heated garden hose and a heated drinking water hose. Use hardly separates the products: one hose often names campers, gardens and livestock in a single title. What separates them is length, the maker's temperature rating, the inner diameter and how much the maker is willing to put in writing.
Three products share the name and are something else. A CPAP heated hose is a breathing tube. An industrial heated hose carries adhesives or chemicals. An automotive heater hose carries engine coolant. None of them is covered here.
AI-generated
The typical job: a few feet of hose between the campground spigot and the city-water inlet, on nights below 32 °F.
The hose we would buy first
For the standard 25 ft run at an RV site, one hose states more than the others about what it is made of.
Our pick
Camco 25 ft (22911)
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Camco · Established brand
The 25 ft hose whose listing names its certifications and its certifiers.
Why here: Its listing names an NSF/ANSI 61 certified hose and a CSA lead-free certification to NSF/ANSI 372. Most marketplace listings say “lead-free” without naming who checked it.
Best for: RV sites where the spigot is within 25 ft and named drinking-water certifications matter more than the lowest price.
What speaks for it
Listing names an NSF/ANSI 61 certified hose and CSA lead-free certification to NSF/ANSI 372
Thermostat-controlled heating cable that only heats as needed (listing)
5/8 in inner diameter
Camco's own site lists a 3-year warranty with receipt
What to know first
Camco publishes no wattage on its product pages
Instruction sheet not available online: cord and insulation rules could not be checked
Warranty is given as 1 year in the Amazon listing data and 3 years on camcooutdoors.com
Costs clearly more than marketplace hoses of the same length
Length
25 ft
Rating (maker's claim)
−20 °F (Camco)
Inner diameter
5/8 in
Heat control
thermostat-controlled cable (listing)
Certification named
NSF/ANSI 61 hose, CSA lead-free to NSF/ANSI 372 (listing)
Warranty
3 years with receipt (camcooutdoors.com); 1 year in Amazon listing data
For a spigot only a few feet from the inlet, the 12 ft hose of the same Camco line is our short-run pick: Camco's own site confirms its bore and warranty. At 15 ft, Kohree lists the length on its own product page, while the cheaper RVMATE hose is documented by its listing alone.
The pick has gaps, and they belong on the table. Camco publishes no wattage on its product pages, and its instruction sheet is not available online. The warranty is stated as one year in the Amazon listing data and as three years with receipt on Camco's own site, so keep the receipt and check the current terms. How we arrive at a pick is explained on how we compare.
Pick by situation
Pick by situation
1
If your spigot is within 25 ft and you want named drinking-water certifications → Camco 25 ft (22911)
Length comes first because it decides price and power draw. A hose that is too long is not a harmless reserve: the PIRIT manual warns not to leave a hose coiled while it is plugged in, because it can overheat and melt. The length pages go into detail: 12 and 15 ft, 25 and 30 ft, 50 ft, 75 ft and 100 ft.
Numbers from the manuals
32 °F
Water freezes
180 W
25 ft thermostat hose (PIRIT, Miller)
1.5 A
Draw of that hose at 120 V
0
Extension cords allowed by PIRIT and Miller
Only a few makers publish electrical data. These are the figures we found in manufacturer documents:
Length
Watts
Amps at 120 V
Source
12 ft
90 W
0.75 A
PIRIT manual
25 ft
180 W
1.5 A
PIRIT manual, Miller DH25
25 ft
no total published
no figure published
RVGUARD: 7 W per foot of heating cable
50 ft
360 W
3.0 A
PIRIT manual, Miller DH50
100 ft
500 W
4.5 A
PIRIT manual
Camco and Kohree publish no wattage on their product pages. A thermostat hose draws its rated power only while it heats. PIRIT says the heater will not turn on unless the air approaches freezing, Miller says its hoses activate below 40 °F, and RVGUARD gives 47 °F on and 60 °F off. What that means for a monthly bill, with a calculator for your own electricity price, is on the page about power use. Whether the hose can simply stay plugged in is answered under can you leave a heated hose plugged in.
Five things the listings leave out
1. The hose protects itself and nothing else. The PIRIT manual states that the hose “is NOT designed to provide freeze protection to your water supply.” The spigot, regulator, filter and inlet stay cold. The guide on keeping an RV water hose from freezing shows what to do about them.
2. Extension cords are ruled out by the makers we could check. PIRIT writes “Do not use extension cords”, Miller writes “no extension cords”. Both demand a GFCI-protected outlet. The 2023 National Electrical Code requires GFCI protection for the 15- and 20-ampere receptacles at RV sites, but older parks may differ.
3. The thermostat has to feel the weather. PIRIT requires the thermostat to be exposed to ambient temperature, not in a heated or insulated compartment. Miller adds: outside air, shaded from direct sunlight. A thermostat tucked into a warm wet bay leaves the hose cold.
4. More insulation is not automatically better. Miller says “Do not insulate the hose.” No Camco statement was found. Insulate the unheated parts instead; the page on insulated water hoses and pipe wrap sorts out what helps where.
5. Pipe heat cable is not a hose product. Frost King forbids its heat cable kits on any type of hose. The details are on heat tape for a water hose.
Spec sheets side by side
This selection covers only products sold on Amazon. It is not a market overview. Products are compared by manufacturer and listing data, not by hands-on testing. How we compare
Comparison: Camco 25 ft (22911), RVGUARD 25 ft, REHOSEUP 30 ft, Camco 50 ft (22912), VEVOR 50 ft (1/2 in), PIRIT 100 ft
Data from manufacturers and listings, checked October 2026. A dash means no figure was published.
The columns labeled “Seller data only” rest on Amazon listings alone; they are shown for comparison, not as picks.
A dash means that neither the maker nor the seller published a figure. “Seller” and “listing title” mark data that we could not check against a manufacturer page. The full comparison with every stated value is on heated RV water hoses compared by spec sheet.
Find your hose in four questions
Hose picker
Question 1 of 4
This selection covers only products sold on Amazon. It is not a market overview. Products are compared by manufacturer and listing data, not by hands-on testing. How we compare
Where will the hose run?
The same hoses are sold for RV, garden and farm use. What changes is the length and what else has to be protected.
By use, by brand, by problem
RV and camper:heated RV water hose covers the hook-up at the pedestal, from the spigot to the inlet.
Garden and home:heated garden hose looks at winter water for a greenhouse, a kennel or a house spigot.
Barn and stock tank:heated hoses for livestock covers long runs, outlets in the barnyard and what the tank needs.
Brands:all brands sorted by what they document, Camco with its part numbers and warranty terms, Pirit, whose manual is the most complete source of electrical data, the two side by side under Camco vs Pirit, and Kohree.
Camco's instruction sheet was not available online, so its rules on cords, coiling and insulation are missing from this site. Temperature ratings stay maker claims throughout. No test of heated hoses by Consumer Reports turned up in our research, and no recall of a heated water hose appeared in a search of the CPSC recall list on October 11, 2026. Our selection covers only hoses sold on Amazon; it is not a market overview. For several of them the listing is the only source: those figures are marked “according to the seller” or “listing title”, and they weigh less than a manual or a manufacturer page.
Questions people ask
QHow much electricity does a heated water hose use?
Manufacturers of thermostat-controlled hoses state about 5 to 7.5 watts per foot. The PIRIT manual lists 90 W for 12 ft, 180 W for 25 ft, 360 W for 50 ft and 500 W for 100 ft. Miller Manufacturing gives 180 W and 360 W for its 25 and 50 ft hoses. A thermostat hose only draws that power while it is heating, which the makers tie to air temperatures near or below about 40 °F.
QDoes a heated hose keep the RV's pipes and the spigot from freezing?
No. A heated hose keeps the water inside the hose liquid. The PIRIT manual says in capital letters that the hose is NOT designed to provide freeze protection to the water supply. The spigot, the pressure regulator, the filter, the fittings and the RV's own water lines stay unheated and need their own protection, for example insulation on the riser.
QCan you use an extension cord with a heated water hose?
The two manufacturers whose instructions we could read both say no. The PIRIT manual states: Do not use extension cords. The Miller Manufacturing help page for its heated hoses says: no extension cords. Both require a GFCI-protected outlet. Choose the hose length so that its own power cord reaches the outlet, and check the instruction sheet of your model.
QIs a −45 °F hose better than a −20 °F hose?
Nobody can tell from the listings. The temperature rating is the maker's own claim. No listing, manual or standard we reviewed names a test method for it. Compare what else is stated instead: watts, thermostat switch points, a certifier for drinking-water claims, the warranty and the hook-up rules.
QCan you put heat tape on an ordinary water hose instead?
Not standard pipe heat cable. Frost King, a leading maker of such kits, writes: never install the Heat Cable Kits on any type of hoses. Its kits are made for copper, iron or Schedule 40 plastic water pipes only. Use a hose that is built with its heating element, or a product whose maker names hoses in writing.
Spec sheets, manuals and electrical rules for winter water hook-ups
We are the editorial team at heatedwaterhoses.com. We read the manuals, spec sheets and listings of heated water hoses line by line, check drinking-water and electrical claims against primary sources such as the EPA and the National Electrical Code, and turn that into plain-English buying advice with sources on every page.
