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Topic: My set-up to heat house using bitmain S7 (UPDATE 03JAN2016) - page 3. (Read 9082 times)

sr. member
Activity: 429
Merit: 250
Quite a good idea to be honest, I like the way you are saving money on heating and using that to run the bitcoin miner, very efficient  Roll Eyes

I disagree that. It is not efficient simple reason that miners will not earn money back because difficult level rising all the time and when you use example 1000w keep miners running you will get only 1000w heat. If you use air source heat pump you will get 2000-6000W heat per one 1KW so it is much more efficient for heating than running miners.

So you have to spend 2-6times more electricity when using miners compared heat pump or other efficient heater to heat house for same temperature. Keep that mind when doing calculations.

I see your point, but you can't really compare the two.
Sure, if your goal is to use as little electricity as possible to heat your house, then there are more effective ways. Insulating walls, roof, windows and burning wood comes to mind.
Throw in a heat pump in the mix and you're good to go.

But, if you eitherway are going to mine, its more efficient to use the heat, instead of just pumping it out of the house.

This is how I do it:
Family and friends are heating their houses with 1000-2000W electrical heaters. So I replace their heaters with miners. I pay half the electricity.
They get: Same heat for half the electricity price.
I get: Location to host miner, half price on electricity.

This is how you ROI a miner today  Cheesy

I support Torepia answer on this.

The goal wasn't buying the miners to heat the house over my furnace. trust me it is far cheaper to use my gas furnace. The goal was to utilize the heat blown off the miners. Instead of blowing the heat elsewhere, I can use it to heat house.

At this stage in mining, it will take 6 months+ to get ROI mining straight bitcoin (depends on electricity cost). But most people who keep say "ROI is an issue" they refuse to mention or include the fact that reselling the miner will easily get you over your ROI. Even if you don't mine enough to get your ROI, the reselling will.

Look at prices currently on the marketplace section, ebay, craigslist, amazon, etc.
full member
Activity: 140
Merit: 100
Quite a good idea to be honest, I like the way you are saving money on heating and using that to run the bitcoin miner, very efficient  Roll Eyes

I disagree that. It is not efficient simple reason that miners will not earn money back because difficult level rising all the time and when you use example 1000w keep miners running you will get only 1000w heat. If you use air source heat pump you will get 2000-6000W heat per one 1KW so it is much more efficient for heating than running miners.

So you have to spend 2-6times more electricity when using miners compared heat pump or other efficient heater to heat house for same temperature. Keep that mind when doing calculations.

I see your point, but you can't really compare the two.
Sure, if your goal is to use as little electricity as possible to heat your house, then there are more effective ways. Insulating walls, roof, windows and burning wood comes to mind.
Throw in a heat pump in the mix and you're good to go.

But, if you eitherway are going to mine, its more efficient to use the heat, instead of just pumping it out of the house.

This is how I do it:
Family and friends are heating their houses with 1000-2000W electrical heaters. So I replace their heaters with miners. I pay half the electricity.
They get: Same heat for half the electricity price.
I get: Location to host miner, half price on electricity.

This is how you ROI a miner today  Cheesy
newbie
Activity: 25
Merit: 0
Quite a good idea to be honest, I like the way you are saving money on heating and using that to run the bitcoin miner, very efficient  Roll Eyes

I disagree that. It is not efficient simple reason that miners will not earn money back because difficult level rising all the time and when you use example 1000w keep miners running you will get only 1000w heat. If you use air source heat pump you will get 2000-6000W heat per one 1KW so it is much more efficient for heating than running miners.

So you have to spend 2-6times more electricity when using miners compared heat pump or other efficient heater to heat house for same temperature. Keep that mind when doing calculations.
full member
Activity: 140
Merit: 100
Like your setup mate! I'm also heating a house with miners, if u wanna check it out here's the link: https://www.youtube.com/watch?v=mfmfdEjRkWU
I badly need to insulte the room because of noise with the S7's, would you insulate the room in the video, or create a box like you did, inside the room instead?

Do you know the amount of dB your setup makes?

Thanks

Nice set-up!

Insulating the room would be easier but prob would still be louder than enclosing the S7s with an insulated box. The box is more of a hassle having to cut ports for the air to come out and air going in but would enclose the sound to a smaller area. Either would work good. Just make sure the insulation is both fireproof and sound reduction.

I did not have a dB meter to test the difference but it is incredibly quieter! (10x quieter)

goodluck!

whatever you end up doing please take pics!

Came up with a redneck solution instead, has killed the high-pitch sound, so its not a problem anymore.
What I did was basically make sure all the miners get direct cold air from the outside, which made the temps go down. And then the fans didn't have to work as hard anymore, problem solved (for now).
https://youtu.be/oabV90lx_rI
sr. member
Activity: 429
Merit: 250
Like your setup mate! I'm also heating a house with miners, if u wanna check it out here's the link: https://www.youtube.com/watch?v=mfmfdEjRkWU
I badly need to insulte the room because of noise with the S7's, would you insulate the room in the video, or create a box like you did, inside the room instead?

Do you know the amount of dB your setup makes?

Thanks

Nice set-up!

Insulating the room would be easier but prob would still be louder than enclosing the S7s with an insulated box. The box is more of a hassle having to cut ports for the air to come out and air going in but would enclose the sound to a smaller area. Either would work good. Just make sure the insulation is both fireproof and sound reduction.

I did not have a dB meter to test the difference but it is incredibly quieter! (10x quieter)

goodluck!

whatever you end up doing please take pics!
full member
Activity: 140
Merit: 100
Like your setup mate! I'm also heating a house with miners, if u wanna check it out here's the link: https://www.youtube.com/watch?v=mfmfdEjRkWU
I badly need to insulte the room because of noise with the S7's, would you insulate the room in the video, or create a box like you did, inside the room instead?

Do you know the amount of dB your setup makes?

Thanks
sr. member
Activity: 429
Merit: 250
Would a single 6" alum flex tube attached to the fan blowing directly into another room work as well.

Indeed it did. Updated with a sound reduction box. Waiting for batch 9 to arrive to add to the set-up
hero member
Activity: 588
Merit: 500
Would a single 6" alum flex tube attached to the fan blowing directly into another room work as well.
legendary
Activity: 1007
Merit: 1000
Wow, brilliant! Ive joked many times about using mining equipment as space heaters, but this is way beyond what I envisioned! Well Done!
sr. member
Activity: 429
Merit: 250
just ordered another 2 S7s so I will create a custom vent duct with sheet metal so all 4 (connected with flexible ducting) will be utilized to heat the house. I will see if its the same or better.
sr. member
Activity: 429
Merit: 250
Nice little setup although how effective is this heating method for your home?

working just great. keeps my house between 68-69 in 4 rooms (master bedroom, living room, kitchen and main bathroom). Its not a method but really just utilizing the heat already generated by the miners to heat the house.
hero member
Activity: 630
Merit: 500
Nice little setup although how effective is this heating method for your home?
sr. member
Activity: 429
Merit: 250
Have you calculated how much money you save by using the S7 to heat your house?
Last month my electricity bill was 180$. That was running 2 S7s and 3 S3+ (just recently sold). First winter in this house since I bought this spring so cant compare costs but I can compare some friends houses and their bills (they were interested in comparision as well).

A friend with same sq ft paid 165$ in heating, another paid 230$ and a third paid 345$ (they have a two story though). All were shocked that I was paying near the same, cheaper or way cheaper.
sr. member
Activity: 429
Merit: 250
How much extra energy do you use to take away the heat from S7?

I think even with natural convection, the heat generated by S7 can heat a room without the complex set up.
The watts to run the in line fan is the "extra" energy used to utilize the heat generated by the S7 but this allows me not to have to turn my furnace on to heat the house.

hero member
Activity: 798
Merit: 500
How much extra energy do you use to take away the heat from S7?

I think even with natural convection, the heat generated by S7 can heat a room without the complex set up.
sr. member
Activity: 429
Merit: 250
Well done.

Maybe I didn't understand / missed this part.  How are you pushing the air around the house?  Do you keep the furnace blower set to always on?

this was an option I was using but the furnace blower was sucking the cool air from inside the house and pushing it back through and was cooling off the air blowing from the miners. The air was to cold to have blowing constantly.

The 470 cfm duct fan is sufficient to blow throughout the house. When i put a piece of paper or plastic in the vents in the rooms you can see it vibrating strongly from air flow. Also if you stand on the vents in the room they are warm to the touch from the air constantly blowing on them. The one thing that sucks now is my garage is back to being cold again lol

My house is a little over 1000 square feet. They ran the hvac system to the nearest point of each room to reduce the amount needed under the house. this allows for efficiently and less cfm to move air throughout.

If i had a bigger house (2 stories or 1500+ sq ft.) this system wouldn't work and I would have connect directly to the one rooms vent access.

Understood.  That's a solid setup (I have a single floor ranch myself that is < 1000 sqft much like you).  So this intrigues me Smiley

It would work than. I tried 2 previous in duct fans with lower cfm (180 and 350) that failed miserably. This one was more expensive but moved the amount of air needed, also if the fan of the furnace is turned on you don't have to worry about adding a dampener because the cfm is sufficient.
sr. member
Activity: 294
Merit: 250
Well done.

Maybe I didn't understand / missed this part.  How are you pushing the air around the house?  Do you keep the furnace blower set to always on?

this was an option I was using but the furnace blower was sucking the cool air from inside the house and pushing it back through and was cooling off the air blowing from the miners. The air was to cold to have blowing constantly.

The 470 cfm duct fan is sufficient to blow throughout the house. When i put a piece of paper or plastic in the vents in the rooms you can see it vibrating strongly from air flow. Also if you stand on the vents in the room they are warm to the touch from the air constantly blowing on them. The one thing that sucks now is my garage is back to being cold again lol

My house is a little over 1000 square feet. They ran the hvac system to the nearest point of each room to reduce the amount needed under the house. this allows for efficiently and less cfm to move air throughout.

If i had a bigger house (2 stories or 1500+ sq ft.) this system wouldn't work and I would have connect directly to the one rooms vent access.

Understood.  That's a solid setup (I have a single floor ranch myself that is < 1000 sqft much like you).  So this intrigues me Smiley
sr. member
Activity: 429
Merit: 250
Be careful about backlogging heat in there.. Will burn up your miners.

hence the duct fan. no worries.

i was thinking the same but seems that you have been thinking on all Wink btw i never imagine that someone would use it to heat up his house, well, i had some ideas about a greenhouse, but never to use it to heat up the house, you bring me some ideas Wink

I wish that you can continue posting new images, i really want to see it 100% finished.

what images would you like to see? i will take some photos of the fan connected so you can see how big the fan is pushing the air into the hvac system.

http://imgur.com/HVA7gWn
http://imgur.com/mDQMI3J
http://imgur.com/NKl3PpK
http://imgur.com/eI7EfM8

I used the 6" hvac ducting. I cut a 6" hole into my hvac system using some hvac cutting tools. I got the 3 pack from home depot that has the straight cut, and left/right cuts. The location wasn't ideal because I couldn't get an angle with my large hands/arms so my wife did the majority of the cutting. I fed the ducting into the my hvac duct system about 1-2 ft without the foam lining and connected to the duct fan utilizing an hvac metal band. The 1-2 ft inside was pointed down along the normal path of air flow (without lining) but the hvac duct tubing from the entrance of my existing hvac system to the duct fan had the insulation attached. set the fan on the cut hole in the wood next to furnace, attached the elbow and ran 2 pieces of the insulated 6" tubing from the elbow to the exhaust fans of the miners. the 6" hvac flexible duct fits perfectly over the fans. I used an extra metal band for one to keep attached and used a plastic tie for the other as an insurance holder.

Tomorrow I am going to attach the hvac tubing from the miners to elbow better, the tape doesnt hold as well as I thought.
sr. member
Activity: 429
Merit: 250
Well done.

Maybe I didn't understand / missed this part.  How are you pushing the air around the house?  Do you keep the furnace blower set to always on?

this was an option I was using but the furnace blower was sucking the cool air from inside the house and pushing it back through and was cooling off the air blowing from the miners. The air was to cold to have blowing constantly.

The 470 cfm duct fan is sufficient to blow throughout the house. When i put a piece of paper or plastic in the vents in the rooms you can see it vibrating strongly from air flow. Also if you stand on the vents in the room they are warm to the touch from the air constantly blowing on them. The one thing that sucks now is my garage is back to being cold again lol

My house is a little over 1000 square feet. They ran the hvac system to the nearest point of each room to reduce the amount needed under the house. this allows for efficiently and less cfm to move air throughout.

If i had a bigger house (2 stories or 1500+ sq ft.) this system wouldn't work and I would have connect directly to the one rooms vent access.
sr. member
Activity: 429
Merit: 250
Be careful about backlogging heat in there.. Will burn up your miners.

hence the duct fan. no worries.

i was thinking the same but seems that you have been thinking on all Wink btw i never imagine that someone would use it to heat up his house, well, i had some ideas about a greenhouse, but never to use it to heat up the house, you bring me some ideas Wink

I wish that you can continue posting new images, i really want to see it 100% finished.

what images would you like to see? i will take some photos of the fan connected so you can see how big the fan is pushing the air into the hvac system.
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