Electric heater technologies explained - choosing the right one by room type

How we think about heater technology

When people say “electric heater” they often mean very different devices: a fan heater that warms the air quickly, a radiant panel that heats surfaces, or an oil-filled radiator that holds heat. Rather than start with watts and running-cost math, we begin with two simple questions: how the room is used (short bursts or long occupancy) and whether the space is open, damp or draughty. Answering those steers you to a technology that matches real-life use.

Quick summary table - core technology differences

Feature	Convection / Fan-style	Radiant / Infrared
How it heats	Warms air; fan speeds distribution.	Directly warms people and surfaces without heating all the air first.
Best for	Short, quick bursts in small to medium rooms.	Targeted warmth (seating areas, bathrooms, outdoor patios).
Price/typical cost	R300-R1 500 for common models; varies by brand and features.	R400-R2 000; premium panels and wall-mounted units cost more.

Why the technology matters more than raw watts

Two units with the same wattage behave differently. A 2 000 W fan heater will raise room air temperature quickly but cool fast once switched off; a 2 000 W oil-filled radiator releases warmth slowly and keeps a room comfortable for longer. We recommend matching the technology to how you use the room rather than picking the biggest wattage you can find.

Quick technology primer

Here are the common electric-heater technologies we see on Bash and why each exists.

• Fan / convector heaters - active airflow, fast warm-up, good for quick use (short stays, kitchens, small offices).
• Oil-filled radiators - sealed oil retains heat, quiet, gradual warm-up and cool-down, suited to bedrooms and living rooms where sustained comfort matters.
• Infrared / quartz / radiant panels - heat people and surfaces directly, not the whole air volume; ideal for draughty spaces and outdoor-covered areas.
• Panel / ceramic convectors - a middle ground offering wall-mounting and slim profiles for corridors and small lounges.

If you want to browse specific models or compare features across brands, our Heaters category collects options in one place. Heaters

Matching heater technology to room type

Below we share practical pairing advice based on typical South African room use and realities (high ceilings in older homes, tiled floors in kitchens, small urban apartments). We focus on user experience: where you’ll feel the warmth, how quickly it arrives, and any placement or safety notes.

Bedrooms

Bedrooms benefit from steady, quiet warmth. Oil-filled radiators are usually our first recommendation because they keep a low hum and release heat for longer after being turned down at night. For a small bedroom under 12 m², a 1 000-1 500 W oil radiator typically provides comfortable background heat; use a timer so it runs only when you need it. We also link bedroom heating choices to bedding and layering - check Bed & Linen for duvet options that pair well with low, gentle room heat. Bed & Linen

Living rooms and open-plan areas

Living rooms are where choice depends on activity. If you entertain and need quick top-up heat for an hour or two, a fan heater or a ceramic convector gives instant effect. For families who sit in the same room for long periods, a panel heater or oil-filled radiator creates steady comfort without drying the air. Position panels where people sit; if you have a large, open-plan living area consider multiple lower-powered units rather than one oversized heater. Explore our Furniture and Livingroom categories for ideas on arranging seating so heated areas are used efficiently. Furniture

Bathrooms and wet areas

Bathrooms require moisture-rated appliances. Look for IP-rated radiant panels or purpose-made bathroom heaters - these warm surfaces and dry quickly after use. Never use an indoor fan heater or an unprotected panel in a shower or bath area. When selecting, check the unit’s IP rating and placement instructions and consider a wall-mounted radiant unit positioned outside the splash zone.

Small enclosed spaces (home office, study corners)

For small, well-insulated home offices, a low-profile panel or compact ceramic convector gives comfortable local heating without noise or draft. If you’re on video calls, pick a quiet model and place it behind you or to the side so the camera angle isn’t affected by glare or visible fan blades.

What we check when we recommend a model

When we add models to Bash or suggest types, we look for clear manufacturer guidance, IP ratings for wet areas, straightforward controls (timers, thermostats), and sensible mounting hardware. We also prefer units with clear spare-parts availability and brand support in South Africa. For browsing options, our Appliances hub groups relevant products and helps compare features. Appliances

A few real-world examples we use when advising customers

• Small study: a 1 000 W ceramic convector with a programmable 24-hour timer.
• Family living room: two 1 500 W wall panels placed on opposite sides to avoid a cold spot near doors or windows.
• Bathroom: IP44-rated infrared panel mounted outside splash range for fast, focused warmth after a shower.

You can see a curated selection of suitable heaters and compare features in our Heaters category. Heaters