What makes this tool a must have?
Precise system sizing
Ensure heating and cooling systems are neither over nor undersized.
Lower costs and energy use
Reduce operational costs and minimize energy waste for more efficient systems.
Earn customer confidence
Deliver accurate estimates to build trust and satisfaction.
Starting with basic tools is great, but why stop there?
Take control of your service business and deliver excellence with Zoho FSM, an all-in- one field service management platform.
TRY ZOHO FSM FOR FREEWho uses Zoho FSM?
- Electrical
- Garage Door
- Cleaning
- Chimney Sweep
- Plumbing
- Landscaping
- HVAC
- Pool Service
- Home Services
- Pest Control
- Roofing
Frequently asked questions
It's a free tool that helps you calculate heating, cooling, and ventilation load requirements for buildings.
Anyone! It's useful for HVAC professionals, contractors, and even homeowners looking to estimate their HVAC needs.
No, you don't need an account. It's free and available for everyone.
Yes, it works for both residential homes and commercial spaces, regardless of size.
Yes, it works seamlessly on any device - mobile, tablet, or desktop.