A gas heater using natural gas at $1 per therm (unit of natural gas) will take 30 minutes to heat to your desired temperature and cost $4.71 per day (4.71 therms is necessary to reach 93 degrees).
Most spa owners expect their heater to take no more than 15 to 30 minutes to heat their spa to 102°F.
Yes, hot tubs can be heated with natural gas. The heating by natural gas is extremely fast as it allows water to move from the ambient levels to about 100 to 104 degrees Fahrenheit in a matter of just 30 to 60 minutes.
I know that 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 $1.20 = $4.80 per hour. So the magic number based on some pretty popular averages is $5 per hour to heat the pool and $5 an hour to heat the spa.
Propane gas is more costly, but produces slightly more BTU's than natural gas. Fast Heating: Gas heaters are the clear winners when it comes to the speed of heating. A gas spa heater can add 1-2° per minute, whereas an electric heater may take an hour to add a few degrees.
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.
(Six gallons of propane gas are required to reach your desired temperature.) A gas heater using natural gas at $1 per therm (unit of natural gas) will take 30 minutes to heat to your desired temperature and cost $4.71 per day (4.71 therms is necessary to reach 93 degrees).
#1 Turn the temperature down on your hot tub
The easiest way to save money on your hot tub is to turn the temperature down a few degrees. Each degree will save you approx. 10% on your hot tub energy bill.
When it comes to hot tubs and spas there are really two ways of heating them. The first is gas and the second is electric. Gas hot tubs or gas-fired hot tubs use small swimming pool heaters to heat the water (around 100,000 BTU). These heaters can be natural gas or propane gas.
The costs to run a hot tub depend on several factors. Typically, the cost to run an energy-efficient hot tub is about $1 per day or a $20-$30 increase in your monthly electric bill. However, if your hot tub is really old or not well taken care of, it could be up to $50 per month.
Cost of Running a Propane vs.
The size of your pool also matters, with larger pools costing more to heat than smaller ones. On average, however, a gas heater costs around $200 to $400 a month to run. Electric heat pumps cost less, coming in at about $100 to $200 a month.
Electrical resistance heaters are fundamental to hot tubs. These elements are responsible for generating heat. Pressure pumps are responsible for pushing water through the assembly housing. As water makes its way through the heater assembly, it is heated by an element coil.
How much propane does it take to heat a hot tub? It would take between one to two gallons of propane to heat an average hot tub.
A hot tub will always heat up faster with jets. This is because it disburses the heated water throughout the tub more efficiently and breaks up any cold pockets hanging around in the pipes. And you can also put a cover over the hot tub with the heater and jets going to trap the heat inside.
If your hot tub is located inside, and the air temp is around 76 degrees, it will take about 4 hours to heat up your spa to 100 degrees. The lower the outside temps the longer you will have to wait before your spa is ready. Therefore, by leaving the cover on while it's heating up you can help it warm up faster.
There are basically two ways commonly used to heat a spa: electricity or gas (natural or propane). Most portable models are heated by electricity. They can be equipped with various heaters ranging in kilowatt power (usually from 1.5KW to 11.5KW).
Hot tubs require electricity. And the exact electrical specification will depend on what hot tub you are getting. It's a good idea to know if you have any restrictions on your electrical supply before you start shopping around. As it may limit your options.
One question we sometimes get asked is should I leave my hot tub on all the time? The answer is yes! Hot tubs are designed to be left on permanently and this is how they work best. Of course, they'll need to be drained regularly but for the most part, they are left on 24/7.
So, what is the ideal hot tub temperature when not in use? A good rule of thumb to follow is always keeping your hot tub's temperature 5 degrees below what it usually is.
A typical one-off hot tub service will cost between £150 and £200 and service plans start from £25-£30 per month and can increase to around £45-£50 per month with quarterly drain downs provided by the dealer.
Health Benefits
The heat widens blood vessels, which sends nutrient-rich blood throughout your body. Warm water also brings down swelling and loosens tight muscles. And the water's buoyancy takes weight off painful joints. A dip in the hot tub might also help your mental state.
If you will be using your pool intermittently, you will probably need a larger pool heater because a gas heater will only raise the pool temperature about one to two degrees per hour.
The average cost to heat a pool for one hour on natural gas is around $ 7.00. To heat, an average pool (10-12K Gallon) with no solar cover typically takes 8-14 hours.
It depends on a few things to determine how long it takes a heat pump to heat a pool. However, overall a heat pump generally heats a pool after 24 to 72 hours by 20-degrees Fahrenheit. For smaller pools like a spa pool, the heat pump can heat a pool between 45 and 60 minutes.