Some 278 shops and service providers in Washington state accept bitcoin (BTC) as a form of payment, a tally shows. Participation ranges from cafes and restaurants to hair salons, professional services and manufacturers, suggesting bitcoin payments are spreading across the local economy. One hot tub maker has even developed a product that uses heat generated during bitcoin mining to warm the water.

As of Nov. 10, local time, Washington state has 278 merchants that accept bitcoin, spread across 94 cities, blockchain outlet Bitcoin Magazine reported. Seattle has the most, with 46.

The tally is based on data from BTC Map, a community-based mapping service. By sector, the list includes 42 coffee, bakery and dessert shops, 44 restaurants and fast-food outlets, 46 beauty and wellness businesses, and 50 healthcare and professional services providers. It also shows bitcoin payments are available in automotive and transport, retail and entertainment, and grocery stores.

One case drawing attention is Snorkel, a Washington state-based hot tub manufacturer. The company, which has made hot tubs in the Pacific Northwest since 1979, began accepting bitcoin payments in 2025. It started with a bet the owner, Michael Diederich (๋งˆ์ดํด ๋””๋”๋ฆฌํžˆ), made with his brother.

At first, demand for bitcoin payments was not high, but bitcoin users kept asking for a hot tub that runs on mining rigs. Diederich then worked with Dane Souza (๋ฐ์ธ ์†Œ์ž) of Hashrate House to develop a product that uses heat from bitcoin mining equipment to heat the hot tub.

The prototype includes two S19J Pro bitcoin miners. It uses about 8 kW of power and can heat cold water to 104 degrees Fahrenheit (40 degrees Celsius) in about 4 hours, it said.

The key is recycling the heat generated in mining as heating energy rather than wasting it. Mining rigs typically generate significant heat during computation, but Snorkel converted it into a heat source for hot tubs. Diederich sees mining revenue as a way to offset some of the energy costs that would otherwise be lost as heat.

He also suggested electric hot tubs could evolve to use mining rigs as heating devices. The project won an innovation award at the Heat Punk Summit held in Denver, and one Snorkel hot tub is on display in Denver.

Bitcoin payments are also continuing in everyday consumer spending. The Rose Gift House & Coffee in Renton, Washington, opened in October 2020 and sells gifts while also running a coffee business. The coffee side has grown into the larger part of the business, and it received top marks for customer service in a 2025 local reader vote in Renton.

Overcast Coffee in Seattle's Capitol Hill is also a notable merchant. Founder Jonathan Park (์กฐ๋„ˆ์„  ๋ฐ•) opened the first store in June 2020 and later set up a second location at the Metier bicycle complex. It also sources beans and ingredients from small businesses in the Seattle area.

By area, bitcoin-accepting merchants were confirmed in a range of cities beyond Seattle, including Spokane, Tacoma, Bellingham and Chehalis. The list, however, is based on registration data from the community-run BTC Map, and whether businesses are actually operating and supporting payments can change. The service updates information based on user tips.

These cases show bitcoin's potential use in actual consumption and local businesses beyond being an investment asset. Snorkel's effort to use waste heat from mining equipment to heat a hot tub in particular stands out as an unusual example combining bitcoin mining with an everyday service.