Bitcoin Heated Hot Tubs and 278 Washington Bitcoin Merchants : Now Accepting Bitcoin

Washington Bitcoin merchant list has 278 businesses, from coffee shops and salons to a hot tub maker that heats its tubs with bitcoin mining. The list spans 94 named cities, and Seattle leads the way with 46 listings. First up is a homegrown US manufacturing business from Washington that makes a super unique product.

Snorkel: A Hot Tub Maker That Heats With Bitcoin

Snorkel has been making hot tubs in the Pacific Northwest since 1979, and its wood-stove business dates to the late 1970s. What makes them special is their full cedar tubs, and the wood stove which is fully submerged into the water of the cedar hot tub and has the “snorkel” coming out of the water. This is very convenient for anyone who has no electrical hook up.

It started with a bet in 2025. Michael Diederich, the owner, began accepting bitcoin for hot tubs after a wager with his brother. Payments were slow to trickle in at first, but bitcoiners kept asking him to build a hot tub powered by bitcoin miners. He started building one, pairing the tub with miners that heat the water. Snorkel works with Dane Soja of Hashrate House on the build.

The prototype with two S19J Pro miners drawing about 8 kW, which it says heated a tub from cold to 104°F (40°C) in under four hours. The project won an innovation award at the Heat Punk Summit in Denver, and a Snorkel tub is on display in Denver. Diederich sees a future where every electric hot tub is heated by miners, because the mining income helps pay back the cost of energy that would otherwise be wasted as heat.