Using your house as a heat-sink during the winter months?

EricFiskCGD

Junior Member
Aug 3, 2013
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ericfiskcgd.blogspot.com
If there’s a prize for the strangest newbie post I hope I at least get a nomination…

The short version of this question: Has anyone figured out a way to take the heat generated by computers/servers and move that heat to a colder part of the house or building? Like using your house as a heat-sink…

The long version.
There’s a cooperation that I used to work for that handled gigs of print layouts and print run information for clients, and they had a room full of servers that were constantly be cooled year-round via an HVAC system. Even in the winter there is an AC unit running just to cool the server room while simultaneously there’s the heating unit to keep the work areas warm during the winter.

Has anyone ever come up with a way of pulling the heat away from the server room and using that to heat other work areas in the winter?

Also, besides using the AC to “dry” the air coming in, why don’t buildings just pull in the frigid air from the outside during the winter months?

I’m actually looking for answers to these questions since I’m planning on setting up a server-rack in my basement and looking for ways to recycle the heat that’s generated – capturing it to heat other parts of the basement or the upper floors. Another idea is to use the copper heat pipe with the aluminum fins and install them under our enclosed porch where it’s always cooler and insert two holes for the intake and outtake…

Another inspiration for this project are the winter bills we get, a high electric bill and a high bill for home heating oil. If we could only use one to off-set the other, that would be really nice but would include some really far out engineering that’s just beyond my grasp.

What I’m really trying to do is find a way to use the house in the middle of winter as a heat sink but the only solution that makes sense this afternoon is just have a heavy-duty fan pull the heat out of the server and circulate it around the cold basement.

As an aside – the basement is a constant 50 degrees through-out the year, the only thing that concerns me is the humidity but I’ve been tackling that with a dehumidifier.

Ideas, thoughts, criticism?
 

tarmc

Senior member
Mar 12, 2013
322
5
81
My first thought would be to have a hrv setup to recover some of the heat or cool air being vented away from the server.
 

Red Squirrel

No Lifer
May 24, 2003
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www.anyf.ca
I'm currently designing my server room and will be doing just that.

I still need to figure out where to buy automatic dampers though, I figured they'd be common but can't seem to find any that are under 100 bucks per. The ones I found were like over a grand each! If they really are that expensive my plan may change and I will have to use something else.

This is the idea I have in mind, but it's still draft:



If hydrogen from the backup batteries does become an issue I may have to have a HRV and do a continuous air exchange but for now it's going to be direct air.

My very original plan was to make it a completely closed loop air system (so it stays very clean and keeps going through the filter as well as to be able to control humidity better) and use water cooling but direct air is going to be more effective in the long run especially once I add more equipment. Only have like 350-400w of stuff now. Though I plan to move my actual PC down there and just run long cables, it's an i7 with an add-on video card so it uses 300w on it's own.

I may also make D3 go straight to the furnace return. Physically, it would just share the same pipe as D5. The way this will work is all those pipes will be leading to a central box and the box simply directs air to/from each pipe. Will be controlled with arduino.
 
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tarmc

Senior member
Mar 12, 2013
322
5
81
interesting idea, but extremely excessive. during summer months, use ac in house and supply cold air into the room and make use of an erv or hrv possibly? but in winter close off the duct so it doesn't start filling the room with hot air from the furnace. the motorized dampeners, sensors and blower are expensive and completely un needed. also if youre worried about fumes off the batteries do not recycle the air into the house at all, possibly through the hrv but not back through your return duct or other parts of the basement, better safe than sorry.

another option is a completely separate system. close off the server area completely, install an ac of some sorts or a fan coil to cool the area then hrv from the room
http://www.johnsoncontrols.com/cont...products/fan-coil/horizontal-low-profile.html