For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating.
Outdoor tankless water heater installation requirements.
Indoor vs outdoor tankless water heater.
The consumer must read the entire manual to properly operate the water heater and to have regular maintenance performed.
When choosing a tankless water heater the first thing you need to decide is if you want gas or electric.
Tankless water heater location code.
A few rare cases may also require a third permit.
Tankless water heater requirements department of planning building 250 frank h.
The first permit is for the water heater itself.
Rather you need to consider the pros and cons of each to decide which would be more suitable for your situation.
Neither type is inherently better.
So to help determine which would be the best choice for you let.
There are many advantages to having a tank less hot water heater.
A tankless water heater requires a 4 foot clearance from the side or below a door or window that opens unless the unit is directly vented to the outside.
In almost all circumstances replacing an existing water heater will require either one or two permits.
Since it would not be economical of me to provide the codes for every town in the united states and canada let me just give an example.
94612 general tankless water heater requirements based on the 2010 california plumbing code prior to this inspection all required sequential inspections and correction notices must be completed.
A tank type water heater and a tankless or demand water heater for.
If money or return on investment is the principal reason you are considering converting to a demand type water heater you should perform an accurate total cost analysis that reflects all of the costs to install operate maintain both types of water heaters.
Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models.
When purchasing a tank less water heater there is always the question of which unit will best fit your needs indoor or outdoor.
Next you need to pick between indoor and outdoor.
The installation code for a tankless water heater varies a lot by location.
This ef rating is based on test procedures developed by the u s.
This is as easy as heading down to the local planning or building department to ask for one.
Choose a location for the new water heater that will allow you to vent it to the outside easily.
A licensed professional must install the water heater according to the exact instructions on pages 4 20.
Build a platform with 2 x 4 inch pieces of lumber that will allow you to mount the new tankless water heater about four inches from the wall.