Bitwater. Heat water.
Mine Bitcoin.
Same tank.

If your tank is a standard US or Canada electric water heater with a screw-in element, yes. Bitwater uses the same 1" NPSM fitting your current element sits in, and suits tanks from 30 to 80 gallons. Gas and heat-pump water heaters are not supported. If in doubt, reach out through the form above and we check for you.

The lower one. The upper element and thermostat stay exactly as they are, so the tank behaves normally on heavy draw. One Bitwater per tank is plenty.

Yes. Bitwater puts up to 600 W into the tank continuously, and Autotune shifts power into heat the moment the tank calls for it. Your heater's own upper element and thermostat are untouched, so if the water ever does start running cold they cut in exactly as they always have. We ran the test through winter in New York and Florida with households of four and five people and results have been great. Bitwater fits regular 30–80 gallon electric water heaters built to US and Canada standards; it does not work with heat-pump or gas water heaters.

Up to 600 W — less than a regular 4,500 W element, but running steadily rather than in bursts. Over a day that is the same amount of heat a typical household draws from its tank. Autotune decides moment by moment how much of that power goes to heat and how much to hashrate; you set the water temperature and never think about it.

Heating the water takes the same electricity whether a plain element or Bitwater does it — the hashing happens on the way, not on top of it.

That is the temperature of the element surface, not of your water. You set the water temperature in the app as before. A regular element has to push all its heat through a small surface, so that surface runs above boiling — which is where scale comes from. Bitwater delivers the same heat through a surface many times larger, so the element itself never gets hotter than 140–149°F: too cool for scale to bake on, and gentler on the tank.

The magnesium or aluminium rod in your tank protects the steel by dissolving, and once it is half gone the tank starts rusting from the inside — which is how most heaters die. Bitwater’s anode is a titanium rod fed a small current: it never wears away, so protection does not fade and there is nothing to inspect or replace. And because it is not magnesium, it cannot feed the bacteria that give hot water a rotten-egg smell.

Patent pending. Many aspects of the Bitwater product — its technology and its design — are covered by pending patent applications.

Bitwater — the element and the support unit together — is built to the necessary standards for the US and Canada and will ship already listed. Everything that touches water is Eco Brass and stainless steel, lead-free to NSF/ANSI/CAN 372 and compliant with the US Safe Drinking Water Act.

Bitwater is designed for DIY installation: no piping changes and no new circuits. You should generally know what you are doing when working on a water heater — and we provide paper and video guides for every step. If you would rather have someone on the line, you can book a 1-hour video call with an experienced installer for $99 once your Bitwater arrives.

About the same as swapping a normal element — cut the power, drain the water, unscrew the old element, screw Bitwater in, reconnect, and mount the small controller on the side of the tank. Can be done within about 30–45 minutes.

No. The water cools the chips directly, so there are no fans and nothing to hear. In fact, it can be quieter than your regular heater, as it doesn’t have the water-boiling noise either.

Up to 34 TH/s. What that earns depends on network difficulty and the bitcoin price, and anyone quoting you a figure for the year is guessing. The half that does not move is the cost: the electricity was going in anyway, so whatever it mines is on top.

To an address you control. Out of the box Bitwater mines solo on the Heatbit pool, so a block found is yours. Switching to Luxor or any pool of your choice takes a minute in the app.

Only for the mining. Without a connection Bitwater simply works as a heating element and picks up hashing again when the network is back — your hot water never depends on the internet.

You set the maximum water temperature in the app and Autotune works within it — more hashrate once the tank is up to temperature, more heat the moment it is not. You never have to choose between hot water and mining; that is the job it does for you.

One year from the day it ships. If the element fails we replace it — and because it screws in like any other element, you swap it yourself without a plumber or a service call.

It keeps working; nothing switches off or expires. If an element ever fails outside warranty, we sell replacements at a fixed price and it swaps in the same way — no plumber, no service call. Firmware and app updates stay free for the life of the product.

The US and Canada.

Your reservation is refundable under our terms.

First units go out in Q1 2027.