You should get a real tank, or use NG. 25 gallons (i.e, 100 lb tank) is 2,300,000 btu's. A good ballpark is 100k/hour to heat water for a shower. If take 10 minute showers thats 16,600 btu per shower or 138 showers per tank.

How long will a 100 gallon propane tank last for heating? For example: If you had a 100 pound propane cylinder which holds about 23.6 gallons when full, and an 80,000 BTU furnace that ran 24 hours a day the propane would last about 1.12 days. If the furnace ran 12 hours a day, or 30 minutes of every hour, the propane would last about 2.24 days.

how many gallons of propane does a tankless water heater use?

Propane usage per month on a tankless water heater For a family of 2, 15 gallons will do just fine. For a family of 3 or 4 needs 25 gallons of propane monthly. A family of more than 5 members should need 35-40 gallons of propane to do all their household chores.

What is the best propane tankless water heater? Five Best Propane Tankless Water Heater Reviews 2019 [Buyer's Guide] #1 Takagi T-KJr2-IN-LP – Best Indoor Tankless Water Heater. #2 Rinnai V65EP 6.6 GPM Outdoor – Low NOx Tankless Propane Water Heater. #3 BOSCH 520 HN LP Therm – Cheap Propane Tankless Water Heater.

what is the downside of a tankless water heater?

Tankless water heaters produce an endless supply of hot water, take up less space, have a lower risk of leaking, are safer, and have a significantly longer lifespan on average. The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters.

How much does it cost to run a propane tankless water heater? Average Cost of Tankless Water Heaters Tankless Type Average Unit Cost Natural Gas or Propane $1,000-$1,500 Electric $800-$1,500 Solar $2,000-$6,000

can I hook up a small propane tank to my water heater?

You can connect a propane tank of nearly any size to your household hot water heater as long as you satisfy three conditions: You need to install a pressure regulator between the tank and hot water heater, ensure that the hot water heater is equipped for propane rather than natural gas, and maintain the correct safe

Is heating with propane expensive? Propane heat is more economical and more efficient than electric heat. Virtually anything in your house, restaurant or building that can run on electricity can run on propane. However, the cost of a propane fueled home is actually less than the cost of a home with electric heat.

Are propane tankless water heaters worth it?

The U.S. Department of Energy estimates gas-fired tankless heaters save an average of $108 in energy costs per year over their traditional tank counterparts, while electric tankless heaters save $44 per year. Rewiring your house can easily add as much as $5,000 to the cost of installing a tankless water heater.

What uses the most propane in a house? Furnaces, hot water heaters, and gas fireplaces use the most propane in your home. Here's how much propane they use. Hot water heaters – Depending on how many bathrooms and people you have in your home, hot water heating with propane uses about 1.5 gallons per day. Expect to use 200-300 gallons per year.

What size tankless water heater do I need for a family of 5?

Like, a hot water tank for 5 people will require at least a 60-gallon tank. Since tankless water heaters supply endless hot water, you don't have to worry about capacity, but instead, think in terms of water flow rate. Gallons Per Minute (GPM) is the key when it comes to sizing tankless water heaters.

Can a tankless water heater fill a tub?

A small tankless water heater can take a long time to fill a large tub. Third, if for some reason a larger water heater cannot fit, and the properly sized tankless is too expensive, you can add a second standard water heater next to your present tank. Two smaller water heaters can do the job of one big water heater.

How many gallons of propane does a furnace use per day?

Furnaces. British Thermal Unit, or BTUs, is the industry standard used to measure the heating efficiency of household appliances. The average home furnace runs on roughly 100,000 BTUs, and one gallon of propane equals 92,000 BTUs. That means the average home furnace burns roughly one gallon of propane per hour.

Is propane water heater cheaper than electric?

Propane water heaters are more efficient, but electric water heaters closely compare in efficiency. The cost to operate a propane water heater vs an electric water heater is a marginal difference. Propane water heaters can save you roughly $70-80 per year compared to electric water heaters.

Do you need a recirculating pump with a tankless water heater?

Faster Hot Water with Recirculation No more waiting for hot water. With a dedicated return line, the integrated pump simply recirculates water from the tankless water heater through the line and back to the heater. If your home does not have a dedicated return line, which many do not, it can be very costly to add one.

How much water does a 20 minute shower use?

Water used in a 20 minute shower depends on the shower head. If you are using a low flow showerhead, less water will be used, but the pressure will be less. If you use a rain type shower head, more water will be used. On an average, 5L of water is used per minute of shower.

Which is better hot water heater or tankless?

According to, “For homes that use 41 gallons or less of hot water daily, demand (or tankless) water heaters can be 24% to 34% more energy efficient than conventional storage tank water heaters.” Tankless water heaters (if gas-fired) will save homeowners over $100 annually the longer they remain in service.

How much does it cost to replace a hot water heater with a tankless?

A new tankless water heater costs between $1,500 and $2,000 installed, while a whole house tank costs between $600 and $800. A tankless hot water heater costs around $430 without installation and a traditional heater costs around $440.