How many BTUs do I need for my spa heater?
Tips for do-it-yourselfers Number of gallons x 8.33 (pounds per gallon) x the temperature rise = the number of BTUs required to heat the vessel. For example, consider a 40-degree temperature rise in a 400-gallon spa — that is, 400 x 8.33 x 40 = 133,280 BTUs.
How much gas does it take to heat a spa?
A 100,000 BTU heater uses 1 therm of natural gas per hour, so a 400,000 heater consumes 4 therms an hour. 4 therms an hour x $1.67 = $6.68 per hour. So the magic number based on the most common 400,000 BTU pool/ spa heater is $6.68 per hour in gas cost to run your heater.
Are gas pool heaters efficient?
Gas pool heaters are fast, reliable and efficient. It can be used all year round in all weather conditions compared to other options such as Solar or Heat Pumps. Your swimming pool can rise in temperature of 1.5° Celsius per hour compared to ½ a degree Celsius or less per hour with a heat pump.
How much is a spa heater?
How Much Does It Cost to Replace a Heater in a Hot Tub? Hot tub heater replacement cost ranges from $225 to $650, including $150 to $500 for the heating element. These last about 5 years before developing significant issues such as: Broken or burnt-looking spots.
How much gas does a 400000 BTU heater use?
Here’s why: the average propane pool heater burns about 1 gallon of propane per hour per 100,000 Btus. Since a propane pool heater for a standard-sized pool (~21,000 gallons) outputs 400,000 Btus, you will burn about four gallons of propane per hour.
How long does it take to heat a gas spa?
Using electric heat might take 7 to 8 hours to bring that spa up to set temperature. Using gas heat for hot tubs can cut this time to maybe only take 3 to 4 hours, (depending on the gas heater size).
How much gas does a spa use?
Modern manufacturers advertise the cost to run their hot tubs at about one dollar per day, with $50 per month at the high end. The energy cost of a hot tub varies based mainly on the heater, which usually draws between 1,500 watts or 6,000 watts.
Do hot tubs run on natural gas?
Gas spa heaters, such as the Pentair MasterTemp or the Raypak 106A, are powered by either propane or natural gas. They can be used for inground spas, free-standing wooden hot tubs, or even for portable spas if installed outside of the spa cabinet.