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Thermopreset Heater


Regular price £31.99 GBP
Regular price Sale price £31.99 GBP
Sale Sold out
Tax included. Shipping calculated at checkout.

For those who want to keep their fish keeping hobby as simple as possible, Eheim have a range of thermopreset heaters which will cater to most new hobbyists who wish to keep a less demanding range of fish – from tetras, guppies, bettas, and other species for whom 25 degrees is the sweet spot.

It could not be easier; this is a true plug and play heater that helps take the guesswork out of setting up a new aquarium. Simply install in your aquarium, plug it in, and you’re all set! Not only is this heater incredibly easy to use, but its slimline black design means that even in the smallest of aquariums it is not going to be an eyesore in the tank.

The plastic housing around these heaters helps to protect it from bumps from overenthusiastic fish and being knocked accidentally during maintenance. It also prevents your fish from burning themselves on the heater if they brush past it or like to hang out near it.
As with the Thermocontrol range, the Thermopreset heaters come with an indicator light, to let you know that it is running as required.

Model Suitable for Length Aquariums Up To
50w Fresh/Marine 168.5mm 60L
100w Fresh/Marine 183.5mm 150L
150w Fresh/Marine 223.5mm 300L
200w Fresh/Marine 253.5mm 400L

Collection & Delivery Information

The Short Version! To read our full Delivery Policy please click here.

Click and Collect

Where possible, click and collect orders placed before 2pm will be available for same day collection.

When collecting your order, please ensure to bring your order number or confirmation email with you.

Aquarium Home Delivery (Northern Ireland Only)

Should you be unable to collect your aquarium yourself and need it to be delivered to you, please contact us on (028)90 790 006 to discuss your delivery needs.

Aquarium Home Delivery can be paid cash on delivery or via digital invoice.


Northern Ireland & Mainland UK:

Royal Mail Small Parcel (2 - 4 days) - £4.25
(max. parcel dimensions 45cm x 35cm x 16cm, and not exceeding 2kg parceled weight)

DPD Courier Delivery (1 - 3 days) - £9.99
(max. parcel girth (length + width + height): 230cm; max length: 100cm, and not exceeding 30kg in weight)

Republic of Ireland:

DPD Courier Delivery (Next business day aim) - £9.99
(max. parcel girth (length + width + height): 230cm; max length: 100cm, and not exceeding 30kg in weight)

Return policy

We have a 30-day return policy, which means you have 30 days after purchasing (in store) or receiving your item (online orders/home delivery) to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused, and in its original packaging. You’ll also need the receipt or proof of purchase.

Full information on our returns and refunds policy can be found here: