The location of a water heater is always a concern.
Can i put my water heater outside.
A modest amount of insulation is a plus.
This is to protect it from splashed water rain insects direct sunlight and debris.
Alternatively you can also keep your hot water heater in a shed as long as it s properly ventilated and meets the minimum clearance requirements for distance to combustible material.
You can also wrap your hot water heater in insulation as well as your pipes for good measure.
The lowes home depot even sell metal water heater sheds they are three sided to be placed against the house.
A tankless water heater is for indoor installation only.
Most regulations are fairly simply and require that water heaters be placed against an external wall of the house.
My first house has them outside and they work fine.
For me i put gas water heaters outside and electric water heaters inside.
Water heaters are often located outside the home in garages for example.
Space surrounding the unit is almost irrelevant give yourself enough room to maneuver the sucker or work on it you should be fine.
Often a water heater in a pan or not is out of mind until someone notices water in the hallway damp drywall or a buckling floor outside the water heater closet.
You will want to place your water heater next to an outer wall to make room for the flue.
Avoid installing it in locations that may subject it to freezing.
Check with a professional for installation if you re not comfortable.
Many are installed inside a living space and tucked away in a closet.
Flexible hoses connecting the rest of the plumbing should resolve any movement concerns.
If you re venting straight up make sure to keep out the rain objects animals etc.