The best replacement for boiler is furnace.

The best alternatives to boiler are rated as following:
★★★★★  furnace
★★★★  water heater
★★  hot water heater
★★  forced air
★★  steam generator
★  gas furnace
★  tankless water heater
★  combi boiler
★  furnace which is better
★  oil boiler
★  hot water boiler
★  forced air furnace
★  combi
  furnace difference
  immersion heater
  hvac
  gas boiler
  thermocoil
  combination boiler
  heat exchanger
  furnace efficiency
  immersion
  non condensing boiler
  heater
  burner
  oil
  electric boiler
  condensing boiler
  water tank
  pressure vessel
  burnham
  direct vent boiler
  steam boiler
  condensing
  tankless
  thermoblock
  kettle
  fire tube boiler
  on demand water heater
  lp furnace
  ashp
  heatmor
  woodmaster
  force air

Your alternative for boiler is not listed? Suggest!
Speaking about boiler, one probably shouldn't forget about hot water tank.

Other search terms related to boiler and their ratings are:
★★★★★ hot water tank
★★★★ domestic hot water
★★★ indirect water heater
★★★ hot water heater
★★ forced air
★ cold water tank
filling loop
megaflow
double boiler
You have in mind a companion for boiler and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of boiler in all years. Click on graph for more.
boiler
furnace
water heater