Calcana PH-75A 20’ Standard Output Infrared Patio Heater (Natural Gas or Propane) – 37,500–75,000 BTU, Ventable, 304 Stainless Steel, 21’5” Installed Length

Heat larger spaces with confidence using the Calcana PH-75A 20’ Standard Output Infrared Heater—a powerful, energy-efficient solution designed for open, semi-enclosed, and fully enclosed environments. It’s a great fit for commercial patios, covered outdoor areas, warehouses, and industrial workspaces where dependable radiant heat and precise control matter.

Built with 304 stainless steel construction and aluminum reflectors, this heater is made for long-term durability and efficient radiant heat dispersion. With a modulating input and a wide 37,500–75,000 BTU range, you can fine-tune comfort while optimizing energy use.

Specifications

• Model: PH-75A 20’ (Standard Output Infrared Heater)

• Fuel Type Options: Natural Gas (NG) or Propane

• BTU Range: 37,500 to 75,000 BTU

• Input Type: Modulating

• Material: 304 stainless steel with aluminum reflectors

• Installed Length: 21’ 5”

• Mounting Orientation: Horizontal

• Ventable: Yes (supports enclosed-use requirements)

• Application / Compatibility: Suitable for open, semi-enclosed, and enclosed spaces

• Examples of Ideal Use: patios/outdoor lounges, warehouses/industrial workspaces, covered decks/terraces/garages, restaurants/event spaces/atriums, agricultural/greenhouse heating

Key Features & Benefits

• Standard Output + ventable design = flexible installs in open, semi-enclosed, or enclosed spaces

• Modulating heat control for precise comfort and better energy efficiency

• High-capacity BTU range (37,500–75,000) for medium-to-large areas

• 304 stainless + aluminum reflectors for durability and effective radiant dispersion

• Long 20’ class heater (21’5” installed) to cover larger zones with consistent warmth

Why Choose This Product

If you need serious coverage but also need the flexibility to work in covered or enclosed settings, the PH-75A 20’ is the right lane. It combines rugged construction with modulating control and a ventable configuration— making it a dependable option for commercial and industrial applications where comfort, safety, and performance all matter.

Deliver Results with Love

If you tell us whether you’re running Natural Gas or Propane and describe your space (open vs covered vs enclosed), we’ll help you confirm the best configuration for a smooth install and reliable performance. We want your heater to arrive ready to work—and for you to feel taken care of every step of the way.