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The TCFUNDY 18L is a propane-fired tankless water heater rated at 4.8 GPM, meant for whole-home or multi-outlet hot water without a tank or a mains electrical hookup. It ignites from two D batteries, has a digital display, and includes flame-failure, overheat and pressure safeguards plus a 20-minute auto shut-off. It is a budget import rather than a condensing unit: thermal efficiency is about 80.8%, and it needs a properly set 2800 Pa gas supply or it will not light. Buyers like the output for the money but report fussy ignition and pressure sensitivity, so it suits off-grid or mild-climate users who can manage gas pressure and winter draining themselves.
In stockSold by TENG CHANG INCReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Rated 4 out of 5 across 55 ratings, buyers generally find it works well once gas pressure and water flow are dialed in. Complaints center on ignition trouble and setup sensitivity rather than output.
This is a tankless propane (LPG) water heater that heats water on demand. It delivers 18 L per minute (4.8 gallons per minute) at a 25℃ temperature rise.
It lights with an automatic electric ignition powered by two D batteries (not included), so it needs no mains power, electrical hookup or standing pilot. It has a flame failure protection device and an overheating and pressure safeguard. A 20-minute off self-timer is also built in. The unit combines water and gas control in one.
The gas pressure must be set correctly, or the heater will not ignite. Seal the air inlet, water inlet and water outlet with the attached gasket. Do not use raw material tape or PTFE tape, because it can cause air and water leaks. Do not install the heater or exhaust pipe near flammable or explosive items. In cold weather, empty the water tank to avoid cracks.
