Bbb rating is based on 13 factors. New boiler: what you need to know before you buy a new boiler. Modern boilers are up to 40% more efficient than boilers over 10 years old and can significantly reduce your heating and maintenance bills. To book your survey, just give action enviro a call on. The truma electric water heater heats the water in your caravan or motor home quickly and keeps it hot for a long time this allows you to wash your hands thoroughly, wash dishes and even take.