Frequently asked questions
Practical answers about equipment, hosting, heating and support. For device-specific terms, confirm the exact model and variant with our team.
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Buying a miner
How do I choose the exact miner?
Check the model, variant, cooling, power supply and intended operating mode. Our team can review the setup with you before you buy.
Do the displayed prices include VAT?
Prices exclude VAT. VAT is calculated at checkout.
When will my miner ship, and what is its warranty?
Dispatch and warranty depend on the exact device, variant and batch. Confirm the details for your selected offer before purchase. If a warranty duration is not confirmed, it is shown as “To be confirmed”.
Hosting
How do I check hosting availability?
The hosting page shows the owner-confirmed reference terms dated 15 October 2026. Capacity is reviewed before a placement is agreed. An enquiry does not reserve space or confirm equipment compatibility.
What does the hosting monthly fee include?
The mandatory €15 monthly fee per miner includes monitoring of mining and device operation and is paid with electricity. Repairs and preventive maintenance are not automatically included. Prices exclude VAT. VAT is calculated at checkout.
What equipment can be considered for hosting?
The current hosting offer is for air-cooled miners from 1.5 to 4 kW per device, inclusive. Model suitability is reviewed before placement. Hydro, immersion and GPU equipment are outside this offer.
When can hosting start, and which documents are used?
Launch within one week after the equipment is received. Hosting agreement and handover certificate.
How do I end a hosting placement?
Give 30 days’ notice to end hosting. You can collect your equipment afterwards.
Service & warranty
Can you service a miner bought from another seller?
We service miners bought from CryptoTech and from other sellers. Manufacturer warranty, the seller’s obligations and paid repair are separate. A device bought elsewhere does not automatically receive a free CryptoTech warranty.
How are warranty repairs handled?
For an approved claim within the applicable warranty period, warranty work is free and the faulty device is sent to the manufacturer for repair. The buyer pays shipping separately. Warranty duration is specific to the device and variant.
How are paid repairs and diagnosis agreed?
Out-of-warranty repairs are paid work with an agreed scope. Workshop diagnosis may be needed before a price can be given. Paid service is invoiced; there is no separate service agreement. Requests are reviewed within a few days. A repair date is confirmed after assessment.
Can every problem be fixed remotely?
Remote support availability and cost depend on the complexity of the issue. Describe the issue first so the team can assess the next step. A remote session or outcome is not guaranteed.
Heating
Is an industrial miner suitable for heating a room?
Check the exact device, noise, airflow, electrical requirements and operating mode. An ordinary industrial air-cooled miner is not automatically a quiet room heater.
Do the mining and building-heating fluids mix?
In the illustrated heating-system concept, the miner and building heating use separate circuits connected by a heat exchanger. The dry cooler rejects excess heat outdoors. A conceptual diagram is not an approved installation design.
Can you calculate savings from floor area alone?
Floor area alone is not enough. The room, measured heating use, electricity price, equipment and operating assumptions matter. Mining income and heating savings are estimates, not guaranteed results.
Need help with your setup?
Tell us the model and your question. Include the variant and intended use if you know them.
