Outdoor Heating Calculator — Heaters & Running Cost
Calculate how many outdoor heaters you need and their running cost for your event.
Outdoor area in m²
Expected temperature in °C
Desired warmth level
Heater type
How We Calculate This
The calculator estimates heater count from area, temperature, and desired warmth, then calculates fuel requirements and costs.
Coverage Estimates
- Gas patio heater: ~12m² coverage, 0.9 kg/hr gas
- Pyramid heater: ~15m² coverage, 1.0 kg/hr gas
- Electric infrared: ~8m² coverage, 2kW
- Fire pit: ~10m² coverage
Coverage is adjusted for temperature and desired warmth level.
Frequently Asked Questions
Related Calculators
Guest Capacity Calculator
Work out how many guests fit comfortably in your venue based on room dimensions, layout style and standing or seated arrangements. Free calculator.
Dance Floor Calculator
Calculate the ideal dance floor size for your party or wedding based on guest count and how many people will be dancing. Free online calculator.
Table Layout Calculator
Plan table sizes, quantities and room layout for your event. Choose from round, rectangular or banquet-style arrangements. Free online calculator.
Chair Calculator
Estimate how many chairs you need for your event including ceremony, dining and spare seating for all your guests. Free online party calculator.
Marquee Size Calculator
Calculate the right marquee dimensions for your event based on guest numbers, table layout, dance floor and bar areas. Free online calculator.
Last updated: March 2026
All calculations are estimates. Adjust quantities based on your guests and event type.