Is it necessary to install an EXPANSION TANK for this hybrid electric water heater?
648695
No. Domestic hot water systems are not like hot water heating systems in that they are open loop systems. Pressure is determined by the water supply, not by a recirculating pump, hence do not require an expansion tank to handle pressure surges.
648696
You might check your local codes, but I believe not. Expansion tanks often are installed on gas water heaters since they may heat in a way to produce some extra pressure. There is a pressure relief valve it there is a pressure problem anyway.
648697
The need for an expansion tank is based on the type of system. If you have a check valve, you have a closed system in your home. If you have a closed system, you should have an expansion tank. There are many good articles on the web as to why you need it. Mine was closed, and without an expansion tank. When I installed this heater, I added the expansion tank. Now my pressure is constant, and the flow is much quieter in the pipes. It also saves wear and tear on valves and faucets which used to squirt past the seals.
610257
Jerry I purchased mine for additional heat in my shop that is attached to my home , I also attached it to my 500 gal L.P. tank but you will need a regulator placed on that line , do not go direct from the tank with-out one !!! Note there is a slight smell , for the price it works great . any other questions contact me .
584250
You will need the valve kit and the exhaust kit. The pipe for the gas should be 3/4". you will not run well with the 1/2" gas pipe typical in most homes for the water heater.
2190649
Hi, unfortunately probably not. Your existing water heater likely uses PVC venting and this tankless will melt it during exhaust. If you have a relatively short, straight length then it won't be too expensive to vent. But you NEED stainless steel venting rated for this. While i'm at it, you may not have the right LP line either. check your line, if it's less than 3/4" you will need to replace it. I had 1/2" LP line and PVC venting. I ended up going cheap 50 gal electric. Was way to expensive to replace everything for me
1277745
Just as you need an exhaust system for your regular water heater, you need one for the tankless. It is important to review the specifications to determine the exhaust system component requirements of each type of water heater. The correct type and configuration is important to preserve your warranty rights.
1972004
Sure, but you'll be operating it at capacity and that might lower the life expectancy of the heater. I used two to reduce the load on just one big one and if one does go out, the other can carry the load until I get a new one. My tank is a marine tank, it might not be as big a deal for fresh water. Hope that helped.
2095155
there are 2 aspects: electrical and plumbing. If you do not have the right guage wiring and breaker size then this electrical work has to be done. In addition you need a shutoff switch near the unit in case power has to be turned off to the unit. For the plumbing if the tankless is replacing and existing hot water heater that was in the same area, then the plumbing connections are more straight forward as described in the installation booklet. If the tankless is in a new location then there is a bunch of plumbing required. The installation booklet is pretty explicit on what is need and what connections are needed to the tankless. s there are 2 aspects: electrical and plumbing. If you do not have the right guage wiring and breaker size then this electrical work has to be done. In addition you need a shutoff switch near the unit in case power has to be turned off to the unit. For the plumbing if the tankless is replacing and existing hot water heater that was in the same area, then the plumbing connections are more straight forward as described in the installation booklet. If the tankless is in a new location then there is a bunch of plumbing required. The installation booklet is pretty explicit on what is need and what... » Read More there are 2 aspects: electrical and plumbing. If you do not have the right guage wiring and breaker size then this electrical work has to be done. In addition you need a shutoff switch near the unit in case power has to be turned off to the unit. For the plumbing if the tankless is replacing and existing hot water heater that was in the same area, then the plumbing connections are more straight forward as described in the installation booklet. If the tankless is in a new location then there is a bunch of plumbing required. The installation booklet is pretty explicit on what is need and what connections are needed to the tankless. s « Show Less
608718
Not enough info to answer. The tank must be specific to the water heater and not to the R/V.
44796
In short, yes you can do what you explain without any added pumps. Best thing for doing what you desire is to upgrade to a larger storage tank. This will allow you to run multiple lines without stress on the system for your demands. But as an example, with the standard 3gal tank, I have no problem with lines running over 10' above the tank and still have good pressure. Just doesn't last long with the small tank. Remember, this system makes a decent amount of waste water, so don't expect 10gal to go in and 10gal to come out. If you plan on using it throughout your house, the cost and water consumption will surprise you.
1959302
You sure can. I added one to mine. Just make sure it is a heater for under a five gallon tank
243668
I got a 50w hydor heater and placed it in the tank. But its only because my betta couldn't swim well with the filter not modified. If you dont lower the water flow you can put in inside where the water pump is
252858
Hi I installed it myself extremely easy to do very small, works great . if not self installing you would need both needs a heavy guage electrical connection and rework copper piping from old water heater
2112415
No. Unfortunately mine burned out and was replaced several times and it became more economical to replace with a standard water heater. I no longer can recommend this product.
149101
You do have to buy a tank, a hose and regulator and a fitting for the heater to fit the hose
1440875
I don't know, but the idea of a tankless is to have hot water on demand and not have to keep it heated. Since it's electric you would be using it all the time. I think this would be very expensive since it uses quite a bit of electricity (I think mine has about 6 fuses). Also, they are more "fragile" than a regular water heater; they don't hold up well with considerable use due to scaling and other circumstances. I wouldn't advise it.
1142020
You just need a constant supply of water to the heater whether it comes from the on-demand water pump or some other constant source of water. Make sure the tank is full of water before turning it on.
871756
You will need the pipe & connections to supply the gas to the unit. I installed a stop valve before the heater and used a flexible hose/pipe to heater. I also used hardie board and a piece of sheet metal on the wall behind, though not required.