Electric vs. Gas Tankless Water Heater

We’re going to talk about the gas products we’re going to talk about actually a new tankless water heater condensing tankless water heater but we got to walk over there and don’t forget if you do have questions about anything we’re covering here today go ahead and use that chat feature which is on the right-hand side of your screen just type that question in and we’ll get to it as soon as we get done with gas so let’s go over there all right okay.

So we’ve talked about electric that the the different technology and electric now let’s talk about gas there may be a situation where you’re gonna have to get as you know change technologies and when it comes to gas water heaters reviews so we have you know tankless and we’ve been manufacturing Texas for a while but usually you’re looking at something like you know 199 thousand BTU 540 model which is right here now this is a condensing tankless water heater but we’re offering a new tankless water heater which is actually a hundred and twenty thousand BTU the 140 that’s right and the nice thing about the 120,000 BTU is we can actually use that with most half-inch gas lines that are already in so on a retrofit we’ve got a half inch gas line run yeah this will accept the half-inch where the one hundred ninety nine thousand BTUs we needed a lot more fuel so we had a minimum of three-quarter inch and you really had to be specific you might have had to do some resizing.

So this is gonna fit in a lot more applications yeah because it’ll fit in with using the same gas line that you had before which is it’s just great in a in a in a in a situation where you’re just pulling out an old one is putting in a new one now this is a very efficient water heater this is a condensing water heater so we’re looking at the the what are the efficiencies on this this one is in the low 90s so it’s more than ninety percent efficient so a lot of the heat energy that we’re from burning the gas is going into the water we’re not losing very much at all out of the flue okay so that’s why it actually condensates so we’re putting that heat that’s why the the vent temperatures aren’t as high we’re able to use PVC pipe if you look up there we’ve got PVC pipe on there and since they’re not that high where we’re putting all of that heat into the water so it cools those flue temperatures off and we actually cool them off to where we’re making rain and we have condensation absolutely because we’re using PVC we want to keep those flue temperatures underneath 140 degrees yeah the way we do that is really neat yeah that would that means my next how does this thing work let’s talk about that we’re gonna bring our cold water in here we get that out of the way and we’re gonna go to our flow sensor.

That’s going to register the half again on the floor 0.5 GPM that we need to started then we’re gonna go up here to our secondary heat exchanger that’s the first place we’re taking the water so why do we call it the secondary heat exchanger yeah because our primary heat exchanger where we’re burning gas here we’re extracting heat in this copper heat exchanger so we’re already cooled to flue gases okay so to get a little bit more heat out of those flue gasses we’re gonna take those colder flue gasses or cooler flue gases with the coldest incoming water gets us about 12% more efficient yeah so that’s gonna add to the efficiency on that that water heater alright so you’ve got 12 percent is being scrubbed off of this the secondary heat exchange so while water is passing through there first going to our primary and actually after it’s running for a little bit this will kind of preheat that water coming through the primary kind of pre heats it so that we’ve got warmer water hitting that copper heat exchanger so we don’t have to worry about condensing with super cold water hitting that copper right away yeah and a tankless water heaters hot water.

When you need it that’s what one of the things about it when it will be in standby unless you turn on a hot water faucet and this water heater needs to see 0.5 gallons a minute to initiate you know to startup so it’s gonna have to see that with the flow sensor it’s gonna see that point 5 gallons I mean it’s going to start running it’ll maintain around a point 4 gallons a minute but it needs point 5 to see it so it’s only when you need it now there’s a difference between instantaneous hot water and you know on demand there’s a difference yeah a lot of people might be able to misconception that this is gonna provide hot water immediately when you turn on the fixture and that’s not the case we still have to get the hot water from the heater out to the fixture and this takes a few seconds about 10 to 15 seconds to startup and actually start putting that hot water out okay all right now there are a few different things that kind of set us apart from other manufacturers of tankless water heaters and that’s kind of one of the things.

I wanted to talk about the first thing is the the air fuel ratio sensor now that’s it’s also obviously it’s measuring the air and the fuel and making sure it’s burning complete but let’s talk about that and you know kind of how that works well we want a good clean burn so that we know that we’re getting efficient to use out of the energy that we’re putting in burning all the gassing and getting as much heat out of this possible so this is gonna monitor that we know what the combustion value should be based on our input the computer board is is monitoring their temperatures it’s monitoring how much gas we’re putting in if it doesn’t see that clean combustion this water heater will actually try to take steps it will alter it will improve increase or decrease my fan speed to lean or rich in the combustion to try and get that perfect burn so it’s doing what it can if you’re in a situation where you know our gas isn’t adequate because we’re you’re looking at this we got to have the right amount of gas the grass pressure needs to be correct.

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