Useful answers.
Before the sales call.
Model missed-call revenue or size a heating project with practical calculators built for service businesses, tradespeople, and their customers.
Missed Call Revenue Calculator
Calculate exactly how much revenue your business is losing to missed calls each month.
Free Radiator Size Calculator
Find the perfect radiator size to heat your room comfortably.
Free Boiler Size Calculator (kW)
Calculate the correct kW size boiler for your home's heating and hot water needs.
Free BTU Calculator
Calculate the exact BTU requirements for heating your room efficiently.
These calculators provide planning estimates, not installation specifications or guaranteed revenue forecasts. Confirm heating-system decisions with a qualified professional and use your own call data wherever possible.
See what your next missed call could become.
We’ll map one real enquiry from first ring to qualified handoff, using the questions, urgency rules, and follow-up your team actually needs.