DIY Greenhouse Heating: Calculating the BTUs — Part 3 of 8
In Part 3, I use the system’s 7.66-gallon-per-minute flow rate and a 10-degree temperature difference to calculate approximately 38,300 BTUs per hour. I also begin explaining the purpose of the water reservoir. #BTUCalculation #GreenhouseHeating #DIYHeating
Aug 5, 2026