Hey there Richard hey Kevin oh all right so what do you think we’re working with you well this is the most popular way to make hot water in North America a tank type water here comes in a variety of sizes 3040 up to 100 gallons and it’s fired by a variety of fuels natural gas propane oil or electricity now our unit here is fired by propane the line comes right here and there’s a burner that sits underneath this tank there is a sensor right here it will feel the tank temperature and fire the burnin whenever the temperature gets below 120 degrees ok so this fills up at hot water right here right and if fires up it heats up this tank and you can see up here the cold water feed bringing cold water in and this is the hot one line going up to the faucet this pipe right here is galvanized sheet metal that’s the flue gas so they leave the water heater and go into the chilly this is right here okay now this is actually burning all day long it’s fueling all day long all day every day alright.
So that’s the efficiency still right well not you hearing out it’s making hot water and you know it’s wasteful you going to lose some of that energy to the basement some goes up here a more efficient way to make hot water would be using one of these devices you’ve taught us this is a tankless hot water heater absolutely the key to this is that there is no tank the only time that this gas burner comes on is when you open up the faucet now we’ve got to modify a lot of this water piping and gas piping so what does i shut off the water main and the gas where comes into the house now I have to get the water out of the tank now connect this hose once i do i’d like you to plug in that pump and we’ll get that water pumped right out into that some punch we also need to break the vacuum so the water will leave the tank for that would disconnecting the vacuum breaker great do we have that sump pump there yeah now with the water drained out we can now cut our hot and cold lines let me use this small cutter it’s designed to get into tight spaces can while I do this once you cut away that pipe insulation so you cut the hot water line two that’s enough okay.
This one good another hot good alright we run our water connections now I need to break the Union connection on the gas pipe and when that not disconnected I can now start back in this pipe out once we get this flue pipe out of the way we can move the water here oh yeah like that alright you take the dolly okay alright so here’s a new unit you’re not going to actually vent this out of the existing chimney where we vented that hot water that’s right that old water heater had plenty of flue gas temperature came up out of the water either into the flue gas pipe and went all the way right up out of the chimney okay so those went up really fast that’s right now with high efficient equipment we’re actually getting more heat to be used to heat the water and less into the chimney that means cooler flue gas temperature so less heat going up that chimney and it going up slower that’s right so now it starts going up and now water that’s in the flue gas condensation can now form inside the chimney had rotted away okay so if we were going to use this chimney we’d probably have to rely on a vetting process now you know like this uses a special venting system it’s a concentric pipe in pipe you see it would sit right here now the hot flue gases would leave through this inner pipe going to outside yeah and the outer pipe would carry combustion air the air to be burned by the burner inside that alright and so we do not have to actually send that concentric pipe all the way up the side of house.
You can go right out here and I wanna go right there all right before we get started we have to get rid of this and plug the old shipping any one second go make sure we have a nice tight seal we’ll use some furnace cement to seal that plug the best part for us to exit the building with our flue pipe is right up here at the rim so we’d like to be right about there and that’s about 9 inches from our sump pump line let me show you what that is outside all right Kevin here’s our sump pump line coming out from inside and you can see weird about nine inches right there that’s what we want to drill our hole okay but there was some real limitations about where we could send these flue gases to outside mr. what we want to be at least 12 inches mini window which we are we’d also like to be about 12 inches at least 12 inches away from any side wall like this chimney and we’re about almost 14 so the fine man well why do we care outside walls though what with a side wall if the wind was blowin it could blow in here and could cause a swirl effect and that might put some of the contaminated flue gases back into the intake and that’s not good okay.
Now but we also have to have one more thing to consider and that’s this this is the exhaust from the house furnace mhm we need to be at least four feet away from this point because we don’t want any of those gases getting sucked up after that I look at it not four feet now we’re less than four feet so let me show you just pass me that pipe right there this guy right here it’s a big periscope it’s a snorkel kit and that’s going to sit right here and you can see it will be at least four feet from that exhaust okay so we’ve got a good location are we ready to drill we are it starts with a pilot hole not that to be as level as possible now i’m using a hole saw to cut the hole fire exhaust pipe now if i use this whole star up against the claps i could split them with a drill this powerful so one trick is to run the drill bit in Reverse until we get through the clapboard first couple layers okay claps are out this is the sheathing hand me that drill.