- Radiant heaters predominantly heat people and objects by direct radiation of heat
- Convective heaters warm and circulate the air in a room
They’re best in different circumstances:
- in larger rooms with high ceilings, a combination of radiant and convective heating is best
- in small rooms, space convective heating is effective
- in larger draughty rooms or bathrooms, radiant heating works best
- Does the room need mechanical heating or will it be enough to eliminate draughts, improve insulation and dress warmly?
- How many rooms need to be heated and how big are they? • How much will the new heater cost to run?
- How often and for how long will you need heating?
- What options do you have for powering the heater?
- Does the heater come with a timer so that you are only heating the room when required?
Your Energy Savings (Australian Government) provides a good list of the heating choices available to you.
Reverse-cycle air conditioners (or heat pumps) are the most energy efficient type of electric heater.
Installation of reverse cycle / split-system air-conditioners often affect common property because one part is outside the lot with pipe connections also penetrating common property walls.
Be aware - unflued gas heaters must have adequate ventilation. They can cause indoor air pollution that may affect your health. The NSW Health Factsheet—Unflued gas heaters outlines important health information.