APUS 68,000 BTU RV Tankless
#1 in TanklessFull review
A tankless heater rated 68,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $299.99$299.99
Most RVs heat water with a propane tank heater in a square cutout on the outside wall, usually 6 or 10 gallons. When it fails, the usual fix is a swap into the same cutout, and a growing number of owners switch to a tankless unit that fits the same opening. These rankings compare what the makers and sellers publish on the same terms.
Tank or tankless is the first choice. A tank heater stores 6 to 12 gallons and recovers on propane or, on the gas-electric models, from shore power. A tankless heater has no tank to run out, but it needs 12 V power for its fan and a gas supply that can feed 40,000 to 70,000 BTU.
Cutout and door decide whether a unit fits. Check your cutout size, door size and whether the unit is for a 6, 10 or 12 gallon opening before you buy. Replacement tanks, cores and parts aren’t ranked.
Published figures are thin for several brands. Many sellers give a BTU rating but no recovery rate, amp draw or warranty, and the product page says so when that’s the case.
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Top Picks
RVPart Pro GT60A 60,000 BTU
#3 in TanklessFull review
A tankless heater rated 60,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $259.99$259.99
Shop by Type
Tank
21 rankedPropane and propane-electric tank heaters in 6, 10 and 12 gallon sizes.
Top rated: Suburban SW12DEL (5248A) $669.90
Tankless
19 rankedOn-demand propane heaters that fit the same cutout and never run out of hot water.
Top rated: APUS 68,000 BTU RV Tankless $299.99
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Best RV Tank Water Heaters
- Suburban SW12DEL (5248A)#1 of 21Full review
A 12-gallon steel tank heater that runs on propane and electric for a straight swap in an RV with the matching cutout.
Amazon $669.90$669.9012,000 BTU12 galPropane + electric - Suburban SW12DE (5247A)#2 of 21Full review
A 12-gallon steel tank heater that runs on propane and electric for a straight swap in an RV with the matching cutout.
Amazon $690.92$690.9212,000 BTU12 galPropane + electric - Suburban SW10D (5242A)#3 of 21Full review
A 10-gallon steel tank heater on propane for a straight swap in an RV with the matching cutout.
Amazon $591.09$591.0912,000 BTU10 galPropane - Suburban SW10DE (5243A)#4 of 21Full review
A 10-gallon steel tank heater that runs on propane and electric for a straight swap in an RV with the matching cutout.
Amazon $594.99$594.9912,000 BTU10 galPropane + electric - Suburban SW10DEL (5244A)#5 of 21Full review
A 10-gallon steel tank heater that runs on propane and electric for a straight swap in an RV with the matching cutout.
Amazon $639.99$639.9912,000 BTU10 galPropane + electric
Best RV Tankless Water Heaters
- APUS 68,000 BTU RV Tankless#1 of 19Full review
A tankless heater rated 68,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $299.99$299.9968,000 BTU3.9 GPMPropane - Camplux RE264BN 65,000 BTU#2 of 19Full review
A tankless heater rated 65,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $349.99$349.9965,000 BTU3.9 GPMPropane - RVPart Pro GT60A 60,000 BTU#3 of 19Full review
A tankless heater rated 60,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $259.99$259.9960,000 BTU3.5 GPMPropane - KingRVer Summit XT 65,000 BTU#4 of 19Full review
A tankless heater rated 65,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $399.99$399.9965,000 BTU3.8 GPMPropane - Ranein RA65LH 65,000 BTU#5 of 19Full review
A tankless heater rated 65,000 BTU for endless hot water in an RV that has the cutout for it.
Amazon $449$44965,000 BTU3.9 GPMPropane
How We Rank
Each heater is ranked against others of the same type, and scored on value, hot-water output and warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per gallon of tank, or per 1,000 BTU for tankless | 40% |
| Hot water output | gas recovery in gallons per hour for tanks, maximum flow in GPM for tankless | 35% |
| Warranty | warranty on the heater | 25% |
How we rank explains each factor in full.