Water Heater Flue Size Calculator

To determine the main flue size refer to figure 3 and locate the square inch area of each individual flue size.

Water heater flue size calculator. For example an 8 x 8 square nominal clay chimney flue tile liner has inside dimensions of 6 3 4 x 6 3 4. Tankless water heater sizing calculator. Best 50 gallon electric water. Illustrations of proper gas fired water heater venting using type b double wall vent pipe through a roof above or through a chimney below include.

Before we get to how to use the calculator to size a tankless water heater let s talk about the factors that go into understanding what size inline water heater you need. Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. 6 flue 28 27 square inches 8 flue 50 27 square inches total 78 54 square inches. Then add up their flow rates gallons per minute.

Where are you located. Tankless water heater sizing calculator. Flow rate and temperature rise. Its evident from this chart that a family of 5 which is very common in the us requires a 56 80 gallon size water heater.

Otherwise such vents may be unsafe venting combustion products including dangerous carbon monoxide into the building. To make it simple if you have a gas water heater with a 3 draft hood and a furnace with a 4 flue collar connected to the same chimney flue you d calculate that chimney flue size based on the 3 draft hood the smaller of two. Smith pro size sizing program is a tool that can be used to estimate water heater requirements for many common applications. Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home.

Size a water heater based on number of people in a household if you don t want to bother with any calculations here is an easy reference chart you can use to figure out the right tank capacity for your home. Use our sizing calculator to determine your. First list the number of hot water devices you expect to use at any one time. Tankless water heater sizing calculator.

This is the desired flow rate you ll want for the. We already covered gpm. Now you need to understand what temperature rise means. The ideal flue size is typically determined by the exhaust outlet of the stove or appliance.

It is the sole responsibility of the system designer to select the correct products needed for the specific application. So let s calculate or why don t we skip those calculations and i ll give you the answers. Tankless water heater sizing calculator. As an amazon associate we earn from qualifying purchases.

Water heaters must be vented using a listed and approved venting system that provides adequate size height and draft.