Bitcoin Mining sound proof box

Have Fun Staying Warm

A completely new way to heat your house ! Just imagine an expensive hair dryer that just happens to make money ! Bitcoin mining hardware - ASIC's - blow out lots of warm air, why not use it to heat your house? Power it with 100% renewable electricity and you have zero emissions heating ! Once set up it's just a matter of flicking a switch or setting a timer to turn it on, then eventually selling or (much better hodling) the resulting Bitcoin to pay for the electricity.

Ditching gas & going all electric saves money in quite a few different ways -

No gas standing charge
Electric heating has no losses unlike gas that loses 25% heat in the exhaust
Night tariff electricity cheaper than gas especially when efficiency & BTC reward are factored in
Less Maintenance

Also don't forget to factor in buying an ASIC every 2-4 years (£500-2400), I wouldn't buy new unless running all year.

Fully installed Bitcoin Mine Heating

Heat for Heat comparison Bitcoin mining heating vs Gas

Bigger – less well insulated houses may need lots more heat.
This British Gas article says the average 3 bed house uses 12,000 kWh of gas (=5.9 tonne CO₂).
If you are the person using this much gas YOU are the person boiling the planet ! Not the bitcoin miners.
Get insulated + Heat Ventilation Recovery ASAP & stop burning fossil fuels !

BITMAIN ASIC

Electric Heaters

Gas Combi Boiler

Bitmain S19 pro 110TH vs gas heating

Download the spread sheet for LibreOffice

gas_vs_bitcoin_vs_basic_heating_s19___heat_pump.ods
File Size:	55 kb
File Type:	ods

Download File

Also includes heat pump £325/y not shown

Bitcoin mining heating + Battery

Above is my current setup, the addition of a house battery gives access to day time heat at night time prices !
Good house insulation & high thermal mass help to absorb the heat then slowly release are very helpful.
Don't forget you need a hot water tank heated via a 24 hour timer.
My electricity from Octopus is about as cheap as you will find during off peek in the UK its for Electric Vehicle drivers only (GO / Intelligent tariff), also the addition of Octoplus & Agile tariffs introduce the possibility of free electricity or even paid to consume electricity for when the grid has a surplus.
Prices change due to UK Government price cap .

By updating the Bitmain S19 110TH software, I have now gained Low Power mode (which previously didn't exist). 90.5TH for about 2,352kW ≈ 26J/TH. My sound proof box was built to house a much smaller Bitmain T15 & struggles to cool the S19 on full power with the fans noisily hammering away at 5400 RPM. This now seems much happier on low power mode with the fans purring away at 2880 RMP occasionally going up to 4500 RPM.

Braiins software

With original Bitmain software I found the S19 pro fan speed kept yo-yo ing from 2800-6180 rpm. So I thought I’d give Braiins software a try.
Initially the mine went to full power 115TH fans going max speed 5800-6200 rpm. Chip temperatures were very low 60c, so I changed the target TH to minimum the software would let me 95.858 TH & wattage to min 2472w but the fans were still trying to keep chip temps to 60c. I found changing the target temperature to 68c allowed the fans to relax to a much quieter 62% /4000rpm and 71c 53% / 3600rpm No yo-yo ing 👍
I found 2,472W too hot for the house. This software allows you to turn on & off the 3 hash boards individually so I run with just 2 generating 1,600W 62TH

Requirements

Electricity.
An internet connection.
A Mining Pool Membership such as Ocean.xyz or braiins.com .
An up to date ish ASIC mining rig. Cost £700 - £2800
VPN (Preferable)

Ocean mining can now pay out via Lightning which enables much smaller but more frequent payouts.

Where to buy ASICs

eBay
Buy in the UK blockchainminingsolutions
Buy in the US Telegram https://t.me/kaboomracks

Fastest Most Efficient Bitcoin Miners (December 2025)

Bitmain Antminer (not including 3phase)
S21 XP 270TH 13.5 J/TH 3645W
S21 Pro 234TH 15.0 J/TH 3510W
S21 200TH 17.5 J/TH 3500W
S19 XP 140TH 21.5 J/TH 3010W
S19 110TH 29 J/TH 3100W
S9se 17TH 80 J/TH 1360W - Maintained popularity for a a lot longer than profitability in the US because it would run on 110V with the correct PSU, but very old hat.

Avalon Miners
A16XP 12.8 J/TH 300TH 3850W
A1566 18.5 J/TH 185TH 3420W
A1466 19.5 J/TH 170TH 3315W

Avalon Home A home friendly Mining / heating unit

MicroBT Whatsminer
M72 13.5J/TH 300TH
M70 14.5J/TH 278TH
M60S 18.5 J/TH 188TH 3478W
M60 20 J/TH 172TH
M50++ 22 J/TH
MS50+ 24 J/TH 130THs 3120W
Heatbit 25J/TH 1500W 60TH

ASICs are very loud (70-90db) so they need ideally to be in a sound proof box. Venting the warm air into an adjacent room/rooms is the best way to circulate it around the property. There is such a large air flow that you may need to cut 2 holes in the adjoining walls (one in and one out) or make sure doors are propped open. I found the S17 on low power mode 47THs / 1718Watts kept the whole house warm enough down to -5c. The house is well insulated for an old house. You could experiment with a regular heater to see what wattage you need. Leave it on 48hr to see how warm the house gets you may find 3.1kW of the Bitmain S19j too much heat low power mode will reduce to about 2400w. Unfortunately some ASICs cant be turned down using standard software, but can with Braiins aftermarket software, or be switched off.
When it's too warm to mine 24 hours, I like to operate 23:30 to 05:30 taking advantage of cheap night time rate electricity.

Room Air Flow

1 Year service + filter change

This is 1 "season" (winter months) of mining. If there were no filter, half of this dust would be stuck in the electronics & fans of the mine its self and could cause over heating, which is what I think caused my first mine to fail. It works brilliantly with no hair or dust in the mine after a year.

Bitcoin mine in a sound proof box

This method reduces the noise level of 1 mine down to 50 Db @ 1M. It cuts out all the high frequencies leaving you with a low rumble, like a tumble drier which can only just be heard in the next room.
These things REALY need to breathe, so reducing the air flow must be kept to an absolute minimum.
The air intake best placed on the side or bottom where the air is coolest. The in and outlets need to be about 8.75" -10.75" Diameter this allows the duct to sit slightly in the hole without squashing, no fixing required. A noise reducing duct could be placed on the inlet as well & will reduce noise by a fairly unnoticeable 1 or 2Db.

Vent Sizes Cross Sectional Area (CSA)

The largest Vent on the T15 measures 7" x 4.5" = 31.5"
Power supply vent = 2" x 1.5" = 3"
Total CSA = 34.5"

I recommend 10” now as all mordern ASICs are now >3kW. Even if you mine with an S9 sooner or later you will have to upgrade.

So all paths through the enclosure must not be <= 34.5" CSA and preferably much bigger.

Duct CSA = Area of a circle A = π r ²

10" =3.14 x 5² = 78.54" S19, S21 etc
8" = 3.14 x 4² = 50.26" OK for short runs, S9 ST15s
6" = 3.14 x 3² = 28.27" is less than the CSA of the mine therefore will restrict air flow and kill your mine.

Materials Required-

22mm chip board x5 sheets (chosen for is acoustic deadness)
1 roll of weed suppressant.
1 roll of Masking tape (best) or Duct tape.
1 pack of Wickes Noise and thermal insulation 1200 x 600 x 30mm.
8" - 10” (200-250mm) noise reducing hydroponic duct. For longer runs use bigger duct or fry those ASICs. (S9-T15 8"duct / S19 10")
8" - 10” (200-250mm) duct silencers optional
4 x Latches 100kg
17.5" x 15" x 95mm HVAC filter, custom size ordered from eBay
Draught excluder
Wood screws 3" and 2.5"
AC50 acoustic sealant x 1 (much cheeper than Green Glue)
Larger than normal sealant gun OR 80 LEGO bricks 2x4 + large rubber bands
Trolley Wheels (optional)
Lifting handles (optional)

Tools Required-

Track saw or Plunge saw
Jigsaw
Drill
Drill Bits
large ruler
Tape measure
Stanley Knife
G Clamps
Wire cutters
Bread knife (for cutting insulation)

Box overall dimensions L = 970mm, H = 520mm, W = 582mm
Wall thickness 45mm (2 x 22mm + sealant.

I originally designed this box for the T15 but the latest miners S19 / S21 are bigger (400*195*290), fortunately it still fits into this size box but I had to do away with the internal partitions and widen the vents. It's ok in low power mode but if high power I'd widen the vents to 10" (250mm) or 2x 8". Noise wise the new layout doesn't seem to make a huge difference.

The partition should be so the mine is in the cold air side, with top, bottom & sides exposed to cold air. the Lego here is to hold the second layer of insulation away from the surface.

Decide where your duct entry and exit are going to be so you can work out where the inner box vents will be. The air intake should be at the bottom so as to suck in cooler air from low down. Inner partitions are not glued just held in place by the second layer of insulation.

Anti vibration feet

The feet designed to stop vibration being transmitted through to the floor. You may want to use trolley wheels and or lifting handles as the finished box is very heavy.

Ac50 Sealant is in a much bigger tube than regular sealants 900ml. So rather than pay £16 for a large sealant gun I'd never use again, I used LEGO! and elastic bands.

I drilled a hole for the mains and ethernet leads so it sit nicely between the vertical horizontal insulation. Saw a slot from the top to the hole, this provides a versatile cable entry & saves taking the plugs on and off.

The main box is double thickness screwed and glued with the AC50. The lid just rests on the draft excluder and is held in place with latches.

Air intake moved from the top to the side so its sucking the coolest air from lowest point. Seems happier!

A insulation lid is placed over this centre section, then the whole thing has one final layer of insulation. Generally 2 layers of insulation where ever possible. Be careful not to insulate the mine, don't want it getting too hot.
A strip of draft excluder is placed on the top edge before replacing the lid.

Running the ASIC for the first time.

A cool - well ventilated mine is a happy mine.

The fans have to work slightly harder in a box, self adjusting to 2700-4500 RPM as opposed to running slower when free standing. Chip temperatures are less than 80c. Is this good or not I don't know as Bitmain do not specify a max temperature, but that is the temperature I like to stay below. The fans will increase if its to hot.

Bitmain S17 web portal

Run your mine free standing ( If you can bear the noise 🤪) in a cool area for a couple of hours. They can take a while to start mining especially the first time on your pool or if they been stood along time. All the fans should start immediately.

Set up the mining pool details straight away (otherwise you'll be mining for the previous owner). Access your mine via a web browser every device has an its own I.P. address typically 192.168.1.??? . Logging into your Internet hub (hub address/password is on the router) and look at the devices that are connected. This will tell you the address.
User name - root (Defalt)
Password - root (change this)
Point it too your mining pool.
Make sure it is hashing (if it's not hashing you don't get heat, just fan noise)
Take a screen shot of the chip temperatures so you have a base line guide.
Enclose the mine in your box and watch the web interface to see how its handling the air flow constraints. Over 5000 RPM & you may need to rethink the air flow situation.

Asthma

It also has the added benefit of continuously cleaning the air. I have a mild dust allergy that occasionally causes asthma symptoms, this seems to have gone away since using this heating method. Also may be due to swapping the gas hob for an induction hob in my effort to decarbonise. Gas hobs are notorious causing breathing difficulties.

Bitcoin mine wiring UK

Bitcoin mining ASICs seem to be increasing in Wattage, the S17 drew about 2600W or 11.3A (2600W/230V) on full power which is just about ok for regular UK sockets that are fused at 13A Max, but now some mines can operate at 3500W or 15.2A. Too much for 1 UK socket. You could just run off 2 sockets and just manually switch both switches at the same time. If you want it on a timed circuit to take advantage of cheaper rate electricity, you need a timer. The one shown is rated at 16A so just within tolerance particularly if running in low power mode, roughly 2240W (9.7 A). Consult an electrician.
A UK ring main would be fused at 32A (Amps), However many house hold appliances are increasingly using the Ring main I.E. -

Oven 10A
Hob 10A
Washing machine 10A
Tumble drier 10A
Air fryer 8A
Dish washer 10A
Kettle 10A

As you can see these could very quickly add up to >32A and trip the fuse. So probably best to give the heating it's own separate circuit / fuse. Or put it on a little used ring main EG the upstairs with no major appliances.

Home Mining and the Network

Home mining is good for the Bitcoin network in several ways -

It decentralises the network far more. Rather than having 1000's of ASIC's in one industrial unit wasting heat, have 1000 homes with one ASIC.
It also stops the big miners centralising the network and getting all the Bitcoins.
It gives big miners with cheap power competition.
It spreads the currency too regular people.
Heat can be put to good use rather than wasted.

Bitcoin mine in a fridge.

One years mine heating study 2020-21

Used purely as a heater during the winter 4 month period only.
Bitmain S15 28TH 1450W Cost £1300
BTC Generated = 0.07
Sold @ $10,000 or £7700
£7700 x 0.07 = £540
Cost of Electricity £580
1 year heating cost £40

Pre made home miners

Some companies are starting to make free standing heaters that actually mine bitcoin. Some may be locked to certain mining pools.
Home miners are not generally any where near as efficient as the latest Bitmain tech but are much more home friendly.
Heatbit, futurebit , Braiins

Avalon home

Heatbit

Hobby Mining

Hobby miners have low power consumption so not much use as heaters. The power consumption = heat output. A 100W Nerd miner = 100W heat.
Micro miners nerdminers.com , Bitaxe

Further Resources

Mining repair guides Zeus ASIC -Repair-Guide
Bitcoin Magazine Home Mining
Incorporate bitcoin mining into heating devices Hashing2heating

Cyber Security

The golden age of reasonably safe internet is over, everyone should get serious about cyber security, especially Bitcoiners. The basics use Open-source (anyone can read the code) software where possible. Use a VPN, Hardware wallets, LINUX, GrapheneOS -phone, Signal -coms.
Trust no one, especially big corporations. Other peoples phones, tables, laptops & TVs are always listening & A.I. has the brains to piece together everything.