What i s the best pool heater
no you need a stronger heater specifically designed for a swimming pool
You can find swimming pool heaters from All-Air of South Dade. Pool Leaks Plus, which is also in Miami, specializes in pool repairs, but is also available for consultations regarding the best swimming pool heater for your pool and the best place to make your purchase.
You can buy a swimming pool heater in the Burlington, Vermont are at Leslie's Pool Supplies. They have a great selection.
The swimming pool heater service usually takes about 1 to 2 hours. This of course can change if you have a larger heater.
Try a pool shop
form_title=Swimming Pool Heater Installation or Replacement form_header=11613 Please select the type of pool that needs to be heated*= () Above ground () Spa/hot tub () In ground What type of heater would you like to use? (Select all that apply)*=  Natural-gas fired  Propane-gas fired  Electric  Heat pump  Solar heater  Want recommendation Is the pool indoor or outdoor?*= () Indoor () Outdoor
Call a swimming pool tech to trouble shoot then show you how everything works.
Unless you leave the heater on, Yes
That would depend on which heater model.
I believe the best pool surface is swimming pool gel coat.
My propane company advised me NOT to use my pool heater. They said my pool heater would burn 5 to 6 gallons of propane per hour.