Cold frame heaters extend growing seasons and protect plants in chilly climates, while some compact options double as space heaters for small rooms. This guide compares five top picks designed to deliver reliable warmth, safety, and energy efficiency. Explore features, energy use, and practical considerations to choose the right heater for a cold frame or nearby space.
| Product | Brand | Key Feature |
|---|---|---|
| Dr Infrared Heater Portable Space Heater, Original, 1500-Watt | DR. INFRARED HEATER | Infrared + PTC dual heating; auto energy saving; remote; 12-hour timer |
| Heat Storm HS-1500-PHX-WIFI Infrared Heater | Heat Storm | Wi-Fi control; wall-mounted; tip-over safety; digital thermostat |
| BEYOND HEAT Milkhouse Space Heater, 1300W/1500W | BEYOND HEAT | 3 heat settings; anti-freeze mode; built-in safety protections |
| Heat Storm Wall Gray HS-1000-WX | Heat Storm | Infrared heat; safe-to-touch grill; space-saving wall mount |
| EZ-HEAT 1,500 Watt Baseboard Space Heater | EZ-HEAT | Baseboard design; two heat settings; stay-cool body; overheat protection |
Dr Infrared Heater Portable Space Heater

The Dr Infrared Heater combines infrared quartz tube and PTC heating to deliver substantial warmth in larger spaces. A 1500-watt output provides quick heat, with an Auto Energy Saving Mode to optimize consumption. Features include tip-over and overheat protection, a 12-hour automatic shutdown timer, and a quiet blower at about 39 dB. An IR remote control adds convenient use, while its dual heating system aims for noticeably more heat than typical space heaters. This model is suitable for rooms that require consistent warmth, potentially supporting small cold-frame environments when used in nearby spaces.
Heat Storm HS-1500-PHX-WIFI Infrared Heater

This infrared heater is designed for wall mounting, saving floor space while delivering robust warmth. It includes Wi-Fi connectivity for remote temperature control via a smartphone, a touchscreen digital thermostat, and a remote. Safety features include tip-over protection and a modern control interface suitable for bedrooms, kitchens, or home offices. Its compact footprint makes it a practical option for adjacent cold frames or greenhouse entries where vertical mounting is feasible.
BEYOND HEAT Milkhouse Space Heater

The Milkhouse Space Heater provides versatile heat with three modes: 1300W, 1500W, and a fan-only option. It includes anti-freeze protection that activates below 40°F, as well as automatic overheat and tip-over safety features. Built with durability in mind, the unit emphasizes reliability in cooler spaces and can complement cold-frame setups when used in nearby environments where manual regulation of ambient warmth is desired.
Heat Storm HS-1000-WX Deluxe Indoor Infrared Heater

This 1000-watt infrared heater emphasizes warming efficiency by heating objects rather than just the air, helping rooms retain warmth after the unit cycles off. A safe-touch grill and automatic tip-over shutoff add to its suitability for spaces where safety is a priority. The wall-mount design preserves floor space, making it a solid option for compact areas adjacent to a cold frame or greenhouse work zone.
EZ-HEAT 1,500 Watt Baseboard Space Heater

The EZ-HEAT baseboard model delivers 1500 watts of convection heat with two heat settings and a programmable thermostat. Safety features include a tip-over switch, stay-cool body construction, and overheat protection. Its low-profile, channel-friendly design makes it appealing for use near a cold frame or in basement workshop areas where a steady, quiet heat source is desired without occupying floor space.
Buying Guide: Key Purchase Considerations
- Heat coverage and room size: Choose a heater rated for the space you intend to warm. Infrared models are effective for heating objects and people, while convection baseboard units warm air to raise ambient temperature.
- Placement compatibility: For cold frames, consider wall-mounted options or units that can be positioned near the frame without obstructing airflow or outdoor exposure.
- Safety features: Look for tip-over switches, overheat protection, and child-safe grills. If used near plants, ensure low heat output and even distribution to avoid damage.
- Energy efficiency: Auto energy-saving modes, timers, and remote controls help manage operating costs during extended use.
- Noise level and maintenance: Quieter units yield a more comfortable environment, especially in living spaces or craft rooms adjacent to the cold frame area. Regular cleaning of grills and filters extends lifespan.
- Control options: Consider whether you prefer manual thermostats, digital thermostats, or Wi-Fi connected controls for remote management.
- Durability and build: For spaces near damp conditions or outdoor-adjacent setups, select models with durability and protective housings.
When choosing a cold frame heater, weigh how often you need active warming versus passive insulation. Combining a compact heater with a tight seal around the cold frame reduces energy use while maintaining plant health. Always follow manufacturer guidelines for safe operation near gardening structures and ensure proper clearance to avoid fire hazards.