Tankless gas hot water heater

[tankless]

Hi,
Just joined as I am looking to replace my gas hot water tank with a tankless. The tank I currently have is rented and was red tagged by the rental company saying that I have back draft. They want to charge me $550 to install a power vented rental. I figure this is a sign that I should make the move to a tankless and stop renting.
I have been searching on the internet for the code specifications to install the new unit, but have not been able to find the code specifications, such as how far from a window, dryer vent, basement or first floor window, how far off grade, etc.
In Ontario as a home owner, I can do the installation myself, but need to have it inspected, so I want to install it to code, just need to find where it is hiding...
Thanks in advance,
Gilbert

[jonnyb]

The tankless unit will have all of these specifications when you buy it. It still needs to be vented and the necessary clearances are provided. Other than that you may be required to put a test on the gas piping but asides from that there's not much to them as far as installation goes.

[Drthorne]

Some Home Depot pricing

Bosch Aquastar 6.4gpm $1498

Bosch AQ3 vent kit $298


Paloma 4.5gpm $960

Paloma 3" vent kit $372

[Kreative]

I am in process of buying the Paloma 7.4 Series [PH28RDVS]
The cheapest price I found on the internet is @ Low Energy Systems

[patrob]

I am in process of buying the Paloma 7.4 Series [PH28RDVS]
The cheapest price I found on the internet is @ Low Energy Systems

We have the same unit Also bought it there...speak to Chris, very helpful & knowledgeable www.tanklesswaterheaters.ca

[applejuice]

just moved my furnace and need to move the hot water tank..but am going to upgrade cause 40 gallons doesn't do my 3 rental units...

would this $1200 US Paloma 7.4 do 3 units well you think?

[jonnyb]

just moved my furnace and need to move the hot water tank..but am going to upgrade cause 40 gallons doesn't do my 3 rental units...

would this $1200 US Paloma 7.4 do 3 units well you think?

You'd have to let us know how many bathrooms/appliances may be using hot water and the amount of people in each unit.

[applejuice]

2 x 2 bedroom apartments
1 x 1 bedroom apartment

so max would be 3 showers at once....
one of the apartments has a dishwasher..the other 2 do not as of yet....

I know the specs say 2 showers can be run at once...

[applejuice]

supposedly this can do 2+ showers at a time and has no cold water sandwich?

http://www.cozyworld.ca/tankless-gas...er-navien.html

thoughts?

[antman59]

Hi,
Just joined as I am looking to replace my gas hot water tank with a tankless. The tank I currently have is rented and was red tagged by the rental company saying that I have back draft. They want to charge me $550 to install a power vented rental. I figure this is a sign that I should make the move to a tankless and stop renting.
I have been searching on the internet for the code specifications to install the new unit, but have not been able to find the code specifications, such as how far from a window, dryer vent, basement or first floor window, how far off grade, etc.
In Ontario as a home owner, I can do the installation myself, but need to have it inspected, so I want to install it to code, just need to find where it is hiding...
Thanks in advance,
Gilbert

I recommend getting some technicians in to give you a quote. From what I know their is a lot of work with installing one, and you need to make sure that your current piping can accomodate one. I have a brand new house and because of the distance from my gas metre I would'nt be able to go with a tankless unless I had my pipe replaced with a bigger one (not cheap or easy). You can still do the job your self afterwards, but get that quote so that you can properly asses the job.

I spoke to a guy who installs these and he says as far as time goes, he could install 5 regular tanks in the time it takes to install 1 tankless.

[redac]

I recommend getting some technicians in to give you a quote. From what I know their is a lot of work with installing one, and you need to make sure that your current piping can accomodate one. I have a brand new house and because of the distance from my gas metre I would'nt be able to go with a tankless unless I had my pipe replaced with a bigger one (not cheap or easy). You can still do the job your self afterwards, but get that quote so that you can properly asses the job.

I spoke to a guy who installs these and he says as far as time goes, he could install 5 regular tanks in the time it takes to install 1 tankless.

Interesting... any reason why it would take so much more time as compared to a regular water heater? I suppose it has to do with moving gas lines?

[nornet]

Interesting... any reason why it would take so much more time as compared to a regular water heater? I suppose it has to do with moving gas lines?

I too find it difficult to believe that the difference is that great. Both require attachment to the water piping, attachment to the gas piping and venting. The tankless system requires fitment to the wall and as antman points out may require a gas line upgrade.

[Djayjay]

Hi,
Just joined as I am looking to replace my gas hot water tank with a tankless. The tank I currently have is rented and was red tagged by the rental company saying that I have back draft. They want to charge me $550 to install a power vented rental. I figure this is a sign that I should make the move to a tankless and stop renting.
I have been searching on the internet for the code specifications to install the new unit, but have not been able to find the code specifications, such as how far from a window, dryer vent, basement or first floor window, how far off grade, etc.
In Ontario as a home owner, I can do the installation myself, but need to have it inspected, so I want to install it to code, just need to find where it is hiding...
Thanks in advance,
Gilbert

Your best bet would be to get Reliance to come in and give you a free quote. Just ask the Installer where they have to put it and why.

[Pete_Coach]

I too find it difficult to believe that the difference is that great. Both require attachment to the water piping, attachment to the gas piping and venting. The tankless system requires fitment to the wall and as antman points out may require a gas line upgrade.

Why would you find this hard to believe? Relocation of the heater from a place in the basement to a wall requires work. Finding a suitable place on the basement wall, installing the anchor bolts, additional water piping, gas piping, drilling through the foundation after finding a suitable location for the intake and exhaust and last but not the least, any electrical work that may need to be wired and connected. This all takes time.
Replacing a tank with a tank is just disconnecting and reconnecting a few connections and away you go.

[time space]

Why would you find this hard to believe? Relocation of the heater from a place in the basement to a wall requires work. Finding a suitable place on the basement wall, installing the anchor bolts, additional water piping, gas piping, drilling through the foundation after finding a suitable location for the intake and exhaust and last but not the least, any electrical work that may need to be wired and connected. This all takes time.
Replacing a tank with a tank is just disconnecting and reconnecting a few connections and away you go.

So are you saying that installing this new type of water heater is a tankless job?