Space Heaters
Last updated: 2026-09-28
Electric heaters are simple appliances whose real questions are safety and running cost. These guides cover sizing, placement, safety clearances and how to estimate electricity use.
What you will find here
- Sizing a heater to a room
- Safety clearances and what not to do
- Estimating running cost from watts
- Heater types: ceramic, oil-filled and fan-forced
Frequently asked questions
How much does a 1500 W heater cost to run?
At 1500 W, the unit uses 1.5 kWh per hour. Multiply by your electricity price per kWh: at $0.15/kWh that is about $0.225 per hour.
How much space around a space heater is safe?
Keep at least 3 feet (about 1 meter) of clear space around the unit and away from bedding, curtains and furniture, and never use an extension cord rated below the heater's current.
Products in this category
Specifications and ratings are compiled from manufacturer and retailer listings and shown as listed; they are not SmartAirGuide measurements. Some models are sold under more than one ASIN (colour, bundle or channel variants).
Space Heater
DREO 1500W 16-Inch Space Heater
Best for: Small to medium rooms needing fast heat
Key advantage: 1500 W fan-forced heat with a remote
Important limitation: Draws high current; check the circuit and keep clearances.
Space Heater
DREO Smart Wall-Mounted Heater
Best for: Small rooms where wall space is available
Key advantage: Wall-mounted electric heat with Alexa control
Important limitation: Requires wall mounting and draws high current.
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Related: Portable air conditioners