These heater tubes do not offer a space rating. The BTU output and heating capabilities would be determined by the burner head that is purchased separately for these tubes.
HeatStar Tube Set, 20ft.L, Model# F106404XL

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- 16-gauge aluminized steel tube
- Polished aluminum reflector
- Stainless steel coupler
- Chrome-plated hanger
- Fits HeatStar 60,000 BTU burner box, Item# 66558, and 80,000 BTU burner box, Item# 66559, both sold separately
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