Tankless Water Heater Space Requirements

Tommy olsen rheem s market manager for tankless and specialty products states that replacing a tank water heater with an outdoor tankless unit can even free up indoor floor space.

Tankless water heater space requirements.

The unit then heats the water using either a gas burner or an. How to determine the required size of a tankless hot water heater. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. Tankless water heater vent clearances if the unit is vented to the outside then it needs 12 inches of clearance from a door or window.

Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. Our et 32 is the largest electric tankless water heater that we offer at this time. The box on the floor lower right is an air handler that includes a copper heat exchange coil. The electrical connection requires a means of disconnection to terminate power to the water heater for servicing and safety purposes.

This space heating system is a hydro air system using a rheem tankless water heater seen on the left. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback. Determine your water flow rates. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.

The box on the floor lower right is an air handler that includes a copper heat exchange coil. This unit is rated at 3 9 gpm and is a 4 chamber model. How tankless water heaters work. Simply locate the appropriate water heater sizes on ecomfort using your information.

A tankless heater has a flow sensing device that is activated whenever a hot water tap is opened. How much does a water heater permit cost. Tankless water heaters should not be installed near dryer vents or intake air vents. All models require 120 v ac 60 hz and draw less than 2.

The first permit is for the water heater itself. Determine the mounting space. You re only looking at 20 to 100 out of pocket as opposed to several hundred dollars to call in a plumber. This model in particular is for a whole house application with your standard 4 bedroom 2 bath or larger residences or in radiant heating applications.

You pick up 9 square feet on the floor but you also pick up that floor to ceiling cube he says. For homes that use 41 gallons or less of hot water daily demand water heaters can be 24 34 more energy efficient than conventional storage tank water heaters. Tankless water heaters can be 8 14 more energy efficient for homes that use a lot of hot water around 86 gallons per day. Measure your cold water temperature.