Drain Water Heat Recovery - Greenfoot Energy Solutions

Lowest cost and quickest payback among energy-saving water heating technologies

[@lgmnowkondo938]

why not give us the measurements of the actual rise in temp? THat would be extremely useful.

[@youthemask]

It works because we use hot water everywhere... But as they say: best used in commercial aplications.

[@GreenfootEnergySolutions]

Asavei Adrian The more Hot Water you use the better the savings! Commercial applications are great especially in hotels!! Thanks for your comment!

[@Danoshavits]

Great video guys. I wonder if you could use the waste heat from drain water in a tankless system? If not, how about a small hydronic system?

[@gamesgeargadgets]

You can. The cold water line just gets run from the heat exchanger to the tankless water in line.

[@noshirpanthakee]

Hi, thanks so much for this video! So if I understand this correctly, I would take the 3/4" pex line that comes off my main water supply into my home, and route that to the bottom of the Drain Water Heat Recovery unit. Then have a 3/4 pex line coming off the top nipple, and route that to the "cold-water" inlet line, to my Rannai Tankless Hw system. Is this correct?

[@oplkfdhgk]

Would it be possible to make something like this but shorter so you can install it in like tinyhouses or RVs and other buildings that might not have so much under floor space?

[@oplkfdhgk]

I guess i could do like one with 90 degree bend so it will fit under floor?

[@lgmnowkondo938]

how long would i have to run the shower to run the drain water back through all that copper piping and thus making the rest of my shower more efficient??

[@GreenfootEnergySolutions]

lgmnow kondo Checkout Power Pipe manufacturer website. These can also be purchased at Home depot. renewability.com/#learn-more

[@michaelpinkston4628]

Please quantify your results with actual numbers.

[@warrensteel9954]

The thermal camera in the video is showing the water entering the exchanger at 11 degrees and leaving at 42 degrees. That's a 31 degree rise.

[@johneng1353]

👍😁👌

[@robinandrews1383]

The only way you will ever recover the cost of this thing is if the price of copper goes up to 100$ a lb and you recycle it.

[@GreenfootEnergySolutions]

Robin Andrews Have a look at the technology and you will quickly find it’s is the simplest efficiency upgrade you can do to a house. Its actually included in some local building codes in Ontario and soon to be throughout Canada. Cost of install and materials is around $1000 so very inexpensive. Checkout manufacturer website for more details: renewability.com/#learn-more

[@GreenfootEnergySolutions]

Robin Andrews Its essentially like an HRV ventilation system but for hot water during showers.

[@CommonSenseAdult]

This is a great, no brainer.

[@jaminroyale5219]

1 tenth of a cent saved per liter

[@111dcormack]

Now you have to pay more to heat the room. Lol!

[@E_Jay10]

No.

[@mrspart5548]

@@E_Jay10 yes, it also steals heat from the air around it unless you insulate it and in winter cold air is more dense then hot air aswell as -40 air going down a vent can take away a lot of the effect theres a while list of flaws with these including potential to freeze in a vacant house in cold weather if insulated

[@ivanj1978]

Waste of money

[@tauruszuma]

Pierre sounds like an intelligent and professional guy, he must have been paid a fortune to put his Red Seal on the line like that! brainwashing knows no bounds

[@GreenfootEnergySolutions]

tauruszuma Not sure why you would say that? Drain water Heat Recovery is actually in local building codes in Ontario Canada and most likely soon to be code in new energy codes coming up. Technology is simple. It’s basically the same as an HRV but for hot Water. Makes sense?

[@GreenfootEnergySolutions]

tauruszuma Here is some reading for you! Let me know when your done: renewability.com/#learn-more

[@tyroneedge8267]

If you did five minutes of research, you'd realize that you have no idea what you're talking about.

[@DWHRedits]

noooooooooooooooooooo

[@DWHRedits]

stopppppppppppopppppppp