In collaboration with Lyn.Sauna

Liquidity meets longevity.

Use your Bitcoin as collateral to finance a modular Nordic sauna from Lyn.Sauna, optionally powered by BTC miners through their integrated heat module.

How we do it at Arch

We specialize in helping long-term Bitcoin holders access liquidity without selling.

No monthly payments

Interest accrues during the loan term. No recurring payments required.

No rehypothecation

Your Bitcoin is never lent out or reused. It stays securely held with qualified custodians for the life of your loan.

Transparent pricing

Clear, straightforward terms — no hidden fees or surprises.

Flexible structures

Loans can be customized to meet short-term liquidity needs or longer-term financial strategies.

High-trust relationships

We work with individuals, miners, businesses, and family offices who value security, simplicity, and service.

White-glove support

Our team provides personalized, hands-on service throughout the entire loan lifecycle — from onboarding to repayment.

Who is Lyn.Sauna

Scandinavian craft meets Bitcoin engineering.

Minimal Nordic design

Scandinavian craft designed by Groundwork studio, with just 2,100 units planned worldwide.

Energy intelligence

Optional BTC heat module repurposes mining energy into sauna warmth, closing the loop on residential Bitcoin.

Philosophy of longevity

Built from materials selected for decades of use — a durable ritual space, not a disposable appliance.

Benefits of a sauna

A restoration tradition with measurable benefits for body, mind, and community.

Restoration for the body

Regular sauna use supports cardiovascular health, stress relief, and physical recovery.

Clarity for the mind

A steady ritual space for focus, reflection, and the kind of clarity only heat and quiet provide.

Community by design

Architecture intentionally shaped around social connection — a place for family and neighbors to gather.

Built to endure

Materials and regenerative options chosen for decades of use — a restoration ritual powered by repurposed Bitcoin mining heat, shaped into Scandinavian sauna design.

Interested in a custom sauna?

Order a Lyn.Sauna or start a Bitcoin-backed loan to finance yours.