I installed a 95 gallon bathtub as well as a very large shower with 4x shower heads and we installed a Rheem 60 Gallon hybrid heat pump water heater and it is amazing! The water heater has both electric coil heaters like a traditional water heater, but also has the high efficiency heat pump. Has anyone actually installed a point-of-use water heater? (self.HomeImprovement) submitted 1 day ago by SemaphoreKilo I'm doing a major renovation of my main bathroom, and I am seriously considering installing a point-of-use water heater for the shower/bath faucets. I look in the internets and saw a Rheem RTEX-11, but it had middling reviews.
The water heater in this house isn't big or powerful enough to fully fill my bathtub with hot water. I can't make serious changes to it because this is a rental. Dear plumbers of reddit, what is the safest way to heat up a bathtub full of cold water? Hey, all.
We're renting and the hot water tank is so small that we run out of hot water really fast, there's not enough to fill the whole bathtub, let alone showering after a bath. Do you have your own water heater in your apartment or fed by a main heater by the apartment that feeds all units? If your hot water is fed by a main, wake up earlier and dont compete with all of the others showering to go to work. If you have your own water heater, a element may be out or the water temp may need to be increased.
I looked into this when I redid my both room two years ago and just ended up getting a bathtub with extra insulation (so it holds in the heat). Only cost an extra couple hundred bucks and the bath water keeps its temperature for a pretty solid 30. First, the brand new water heater is too small (Let's not get in to why, that will start me ranting about things currently out of my control).
Second, the hot water heater is literally as far away from the tub, and still in the house. Not seen in the pictures, but I do have access to the back of the tub (right side), through a walk. What is the tub made of? A solution for cast iron, e.g.
bonding a heating mat to the outside, might not work for fiberglass. What is the volume? How much power do you have available, e.g. one 120V 15A receptacle or 40A at 240V? Gas? How hot is the water when the tub is filled and how hot do you want it? A 1500W heater is going to take a while to raise 50 gallons of water from 60°F to 105°F.
10 best bathtub water heater reviewed and rated for 2026. Find the best bathtub water heater for your home available on Amazon. Finding the right bathtub water heater means balancing heating speed, safety features, and compatibility with your tub or bucket.
The table below summarizes five options from immersion heaters to heated foot spas, showing the core use case for each product to help you compare at a glance.