Best Propane Tankless Water Heater (2026): 5 Compared

The listing states 95,000 BTU and 4.42 GPM, a 0.66 GPM low-flow start, a 95-140°F range held within ±1°F, up to 98% thermal efficiency with a UEF of 0.81, an oxygen-free copper heat exchanger, segmented combustion, a 120V supply, a 36dB figure and a two-year warranty. It lists multi-layer safety protection with automatic shutdown and freeze protection that activates near 41°F, and it states the unit must be drained below that temperature or during long non-use. The spec table gives 5.9 by 5.9 by 20.55 inches, which does not match the 20.55 by 13.27 by 5.91 inch cabinet in the bullets, so trust the bullets for size.

Who it's for: households that run two showers plus a sink at once and want the fullest efficiency figures in this group. Who should skip it: buyers who want a vent pipe in the box or an outdoor unit.

Its Solar Score of 9.7/10 comes from performance 32/35, build 22/25, value 21/25, safety 8/10 and warranty 3/5: 86 of 100 points, placed on our 9.2 to 9.8 scale.

Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.

What this listing states. Multi-layer safety protection with automatic shutdown and freeze protection near 41°F stated, so safety scores 8 of 10. 2 Year Manufacturer Warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

The listing states 80,000 BTU and 3.6 GPM for 2-3 water points, a 95-149°F range, dual heating chambers, an oxygen-free copper heat exchanger, four preset modes and a child lock. It lists overheat, dry burn and exhaust blockage protection, a fan that prevents CO leakage, anti-freeze protection down to -10°C, listed as 14°F, and a two-year warranty, with the vent pipe included. The spec table gives 13.8 by 13.8 by 21.7 inches and 18.0 pounds. Installation is by licensed professionals, and the unit is not for use above 2,000 feet.

Who it's for: families who want preset modes and a child lock on an indoor unit with the vent pipe in the box. Who should skip it: cabins above 2,000 feet or buyers who want an efficiency figure stated.

Its Solar Score of 9.7/10 comes from performance 30/35, build 21/25, value 21/25, safety 8/10 and warranty 3/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.

Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.

What this listing states. Overheat, dry burn and exhaust blockage protection with anti-freeze protection stated, so safety scores 8 of 10. 2 Year Manufacturer warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

The listing states 85,000 BTU and 3.6 GPM for 2-3 outlets, a V3.0 self-modulating temperature system that holds temperature within ±1°F, four-season, kitchen and bathtub modes, micro-flame combustion that the maker states cuts gas use and noise by up to 30%, and an oxygen-free copper heat exchanger. It lists a 3.6 to 110 PSI low water pressure start, standard 1/2-inch NPT fittings and an included exhaust pipe. The bullets give 22 by 14 by 6.5 inches while the spec table gives 14.2 by 14.2 by 22.0 inches, so trust the bullets for size. No warranty term is stated.

Who it's for: buyers who want preset modes and low-pressure start on an indoor unit with the vent pipe included. Who should skip it: buyers who want a stated warranty term or a full temperature range.

Its Solar Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 8/10 and warranty 0/5: 80 of 100 points, placed on our 9.2 to 9.8 scale.

Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.

What this listing states. Flame out, anti-freeze, overheating, dry burning, timeout, pipe blockage and high temperature lock protection stated, so safety scores 8 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

The title lists 100,000 BTU and 5.3 Gal, while the bullets list 120,000 BTU per hour, so the two figures disagree and the listing gives no way to settle them; trust the title for the headline figure. The listing states a 32.8-foot wired control panel, ±1°F temperature control, a standard 3/4-inch NPT connector, an outdoor vent outlet and protections for leakage, flameout, dry burning, overheating, timeout, pipe damage, high-temperature lock, wind pressure and anti-freeze. The spec table gives 14.96 by 14.96 by 23.23 inches and 29.1 pounds. No warranty term is stated.

Who it's for: buyers who want an outdoor unit with a wired control panel and the widest protection list in this group. Who should skip it: buyers who want one BTU figure they can rely on or a stated warranty term.

Its Solar Score of 9.6/10 comes from performance 29/35, build 21/25, value 20/25, safety 8/10 and warranty 0/5: 78 of 100 points, placed on our 9.2 to 9.8 scale.

Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.

What this listing states. Leakage, flameout, dry burning, overheating, timeout, pipe damage, high-temperature lock, wind pressure and anti-freeze protection stated, so safety scores 8 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

The listing states 68,000 BTU per hour and 4.74 GPM for 2-3 points of use, a 3.6 PSI start, a maximum temperature rise of 149°F, a 95-149°F display range, a stainless steel body and an oxygen-free copper water tank. It lists flame failure, anti-freeze and overheating protection, standard 1/2-inch NPT fittings and a 2.5-inch horizontal vent pipe, and states the unit saves over 50% of space compared with traditional tank models. The spec table gives 13.8 by 13.8 by 21.7 inches. No warranty term is stated.

Who it's for: cabins and small apartments that need 4.74 GPM from a compact stainless steel cabinet. Who should skip it: buyers who want the highest BTU figure or a stated warranty term.

Its Solar Score of 9.6/10 comes from performance 28/35, build 21/25, value 20/25, safety 7/10 and warranty 0/5: 76 of 100 points, placed on our 9.2 to 9.8 scale.

Taken from the seller's listing on 13 November 2026. Capacity and output figures are rated by the manufacturer.

What this listing states. Flame failure, anti-freeze and overheating protection stated, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.