Grandio Milk House Utility Heater | 1500W Supplemental Greenhouse Heater

Grandio Milk House Utility Heater — 1500W Supplemental Greenhouse Heater

The Grandio Milk House Utility Heater is a compact, plug-in electric heater ideal for supplemental heating in greenhouses up to 300 square feet. At $99, it delivers 1,500W / 5,118 BTU of heat, includes an anti-freeze setting to protect plants on cold nights, and features an adjustable thermostat and safety tip-over switch. It's one of the most affordable and straightforward heating solutions for smaller Grandio greenhouses.

What Is the Anti-Freeze Setting?

The anti-freeze setting is one of the most useful features of this heater for greenhouse owners. When activated, it maintains the heater at a low, fixed temperature — just enough to keep the greenhouse above freezing — without running the heater at full power continuously. This protects cold-sensitive plants on overnight freezes while minimizing electricity consumption. It's ideal for shoulder-season use in spring and autumn when nights dip below freezing but daytime temperatures are mild.

How Does This Compare to the L.B. White Volt Electric Heaters?

The Milk House Utility Heater and the L.B. White Volt series serve different needs:

• Milk House Utility Heater — $99 — 1,500W / 5,118 BTU, 120V standard outlet, up to 300 sq ft, best for supplemental or frost-protection heating in smaller greenhouses
• L.B. White Volt 1.5 — $390 — 1,500W, 120V, purpose-built for greenhouse use with industrial-grade components
• L.B. White Volt 3 — $547 — 3,000W, 240V, mid-range output for larger spaces
• L.B. White Volt 6 — $866 — 6,000W, 240V, high output for large greenhouses
• L.B. White Volt 9 — $1,097 — 9,000W, 240V, highest output for very large greenhouses

The Milk House Utility Heater is the right choice for budget-conscious growers who need basic frost protection or supplemental heat in a smaller greenhouse. The Volt series is the right choice for primary heating in larger or colder-climate greenhouses.

What Size Greenhouse Is This Heater Best For?

The Milk House Utility Heater is rated for greenhouses up to 300 square feet as a supplemental heater. For primary heating in cold climates, or for greenhouses larger than 300 sq ft, consider the L.B. White Volt series which offers higher BTU output and industrial-grade construction designed for continuous greenhouse operation.

Key Specs & Features

• Power: 1,500W / 5,118 BTU
• Coverage: Up to 300 sq. ft.
• Anti-freeze setting — maintains above-freezing temps with minimal energy use
• Adjustable thermostat — set your target temperature
• Safety tip-over switch — auto shut-off if heater is knocked over
• Standard 120V plug — no special wiring required
• Ships in 1–2 business days

In stock — ships in 1–2 business days.