If it is a single click, from time to time, it is the thermostat cycling on and off, and it is normal.
It depends on if it's a gas water heater or electric. I don't think electric makes any noise, but a gas water heater, you'll the gas ignite, and hear the rushing gas from the burner.
form_title= Electric Hot Water Heater form_header= Install an electric hot water heater. Is your current water heater electric?*= () Yes () No How old is your home?*= _ [50] What is your current monthly electric bill?*= _ [50]
Gas heater & electric heater both are available.
form_title= Electric Water Heater form_header= Save with an electric water heater. Do you currently use an electric water heater?*= () Yes () No () Not Sure Do you have any problems with your current heater?*= () Yes () No () Not Sure How old is your home?*= _ [50]
Domestic coil in boiler better than electric water heater.
Not if the water heater is electric
No, you only need gas for a gas water heater.
Normally NO
The Bosch Powerstar AE115 Electric Water Heater is great for the price. Try http://www.heater-store.com
An electric water heater in a hot tank is called an immersion heater and many of those run at 3 kW with a thermostat to control the max temperature. Power showers use a type of water heater that heats the water at the point where it is used, without a tank. They run at 6-8 kW and are also controlled by a thermostat.
Rheem
500kw