Yes, you can in most cases. Water heaters have 3/4″ connections to allow for increased flow and pressure where it’s needed and where the pipes are larger, but that doesn’t mean your plumbing has to match. The heater will flow at the same rate (more or less) as a straight run of 1/2″ pipe in your case.
Does a tankless water heater need a 3/4 pipe?
Typically, tankless water heaters require a ¾-in. or 1-in. supply line.
Can you daisy chain tankless water heaters?
Typical of tankless heaters, in northern US when water supply gets colder, you get less hot water out. If you daisy chain 2 units, will need two 60 Amp circuits. If the flow rate is exceeded, water gets cold fast. Typical of tankless heaters, in northern US when water supply gets colder, you get less hot water out.
Can you use 1/2 pipe water heater?
Standard these days is 3/4, standard used to be 1/2. Same goes for city water supply. There is no use having bigger pipe from the heater if the rest of the piping in the home is smaller.
Can PEX be used on tankless water heater?
PEX tubing may be connected directly to residential electric tank or tankless (instantaneous) water heaters, if the local code and manufacturer’s instructions allow. When connecting PEX tube to gas tank or tankless water heaters, the tube must be kept at least 6 inches away from the exhaust vent of the heater.
Can you run a tankless water heater on a 1/2 gas line?
Check the gas supply
A typical tankless water heater will need a ¾-inch gas line. However, if there is sufficient pressure and the run length is short enough, a ½-inch line may be sufficient with certain tankless water heaters, such as the Noritz EZ Series.
Does a tankless water heater need a dedicated gas line?
Tankless water heaters provide hot water on-demand. Gas units require a gas line, adequate combustion air, a vent to remove combustion gas and an electrical outlet to power the unit. While they last longer than tank-style water heaters, they are more costly to install and often require upgrading your gas line.
Can tankless water heaters be hooked up in series?
Tankless electric water heaters can be installed in series.
Can you install two tankless water heaters?
It is possible to connect two tankless heaters to run parallel to each other, providing a larger amount of hot water on-demand. You could also get a larger tankless unit that can provide a higher flow rate.
Can you connect two hot water heaters together?
Quote from Youtube video: Side we need the same rise vertically. And the same distance horizontally until they feed together to go up a pipe if you do it exactly like this the heaters will be balanced.
Can you use SharkBite fittings on hot water heater?
Yes, you can use SharkBite fittings on hot water lines. Remember, however, that they only work with copper, PEX, and CPVC pipes.
Can you use CPVC On a tankless water heater?
“As stated in Recommendation H: Piping systems using the materials CPVC, PE-RT, PEX, and PP, which carry a pressure rating of 100 psi at 180°F (690 kPa @ 82°C), and which are intended and certified for hot and cold potable water distribution systems according to industry standards and relevant codes, may be connected …
Can PEX be connected directly to hot water heater?
Can I Connect PEX to My Water Heater? PEX can’t be directly connected to a water heater.
How far should PEX be from hot water heater?
The Uniform Plumbing Code (UPC 604.13) states that “PEX tubing shall not be installed within the first 18 inches of piping connected to a water heater.” But the UPC is not used in all jurisdictions.
Can plastic PEX fittings be used for hot water?
Metal fittings are required, however, where the fitting is exposed to UV light. Also, no plastic pipe or fittings can be used within 18 in. of water heating devices. Check your local building code in case there are other requirements where you live.
Which PEX is expandable?
Flexibility – PEX-A is the most flexible, allowing for it to be fastened by cold expansion, which allows the end to be fluted prior to inserting the fitting. PEX B is not expandable and you should never expand the end of a PEX-B pipe. Kink-Resistance – PEX-A has the greatest resistance, PEX-B the lowest.
Where should you not use PEX?
PEX can’t be installed in high heat areas.
You can’t install PEX in high heat areas like near recessed lighting. This also means you can’t connect PEX directly to a hot water heater, but you can use a connecting material to do this.
What is better PEX A or PEX B?
Bottom line, PEX A is more resistant to burst pressure than PEX B. PEX A’s expansive material can handle up to 500 PSI, which makes it reliable in extremely cold temperatures. Since PEX B is a more rigid material, it will not hold up as well in similar situations.
Can you use PEX B fittings with PEX a pipe?
Quote from the video:
Quote from Youtube video: The recommended method to transition is to use a pex b insert style fitting into both the pex a and pex b pipe we'll use the crimp ring on the pex.
How can you tell PEX B from PEX A?
Again, the main distinction lies in the manufacturing method, which is what assigns an A, B or C to PEX. PEX A is made using the Peroxide, or Engel, method. PEX B is formed using Silane, or Moisture Cure, method. This is the most common PEX pipe type out there.
Is SharkBite PEX A or B?
Cross-linking is defined as polyethylene material that has undergone a change in molecular structure using a chemical or a physical process whereby the polymer chains are chemically linked. SharkBite non oxygen barrier pipe is manufacture as PEX-B and SharkBite oxygen barrier pipe is manufactured as PEX-C.
