Don't guess the size. Use a or a square footage guide: 500–1,000 sq ft: ~10 kW (34,000 BTU) 1,000–1,500 sq ft: ~15 kW (51,000 BTU) 1,500–2,000 sq ft: ~20 kW (68,000 BTU) 2. Check Your Electrical Panel Electric furnaces are power-hungry. They often require two or three 60-amp breakers . Ensure your home has at least 200-amp service total. Older homes may need a costly panel upgrade first. 3. Confirm "Downflow" vs. "Upflow"

Buying an electric furnace online can save you thousands in markups, but it requires careful planning to ensure you don't end up with a "frozen" project. ⚡ The Quick Answer

Yes, you can buy an electric furnace online from retailers like (e.g., eComfort or HVACDirect). However, most reputable manufacturers will void your warranty if the unit is not installed by a licensed professional. 🛠️ Buying Checklist: What You Need to Know 1. Calculate Your BTU Needs