WhatsApp +356 9907 9998

Free delivery on orders over €35

Shop in Ħ'Attard

Account Sign in 0 Basket €0,00

-33%

Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W)

€16,00 ~~€24,00~~ Save 33% VAT included

Only 3 left in stock

Size25W

Add €19,00 more for free delivery

Outside Malta? Request a shipping quote Shipping outside Malta? Online checkout delivers in Malta & Gozo. Tell us where you are and we'll email you a shipping quote for this product. Request a shipping quote

Full name * Email * Phone / WhatsApp Country * City and postcode * Quantity Message

Quote for: Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W) · 25W

I agree that Naturepride uses these details to reply to my request. Privacy policy

No payment is taken now. We reply by email with shipping cost and delivery time.

Not sure it's the right one?Message the shop on WhatsApp +356 9907 9998

Free deliveryon orders over €35

Secure checkoutcards, Apple Pay, Google Pay

Local shopPitkali, Ħ'Attard

Description

Looking for the most reliable heating technology at a fraction of the cost? We have a limited stock of Hydor Theo Heaters available as 2nd-hand units. These heaters are world-renowned for their patented PTC (Positive Temperature Coefficient) technology, which makes them far more durable and safer than standard glass heaters, even when pre-owned.

Each unit has been fully tested and inspected to ensure the thermostat is accurate and the heating element is performing perfectly.

Why Choose a 2nd Hand Hydor Theo?

Shatterproof Performance: Thanks to PTC technology, these heaters are resistant to thermal shock. They won't crack if removed from water while hot—a major safety advantage for used equipment.
Self-Regulating Safety: The heating element is designed to never exceed a safe temperature, significantly reducing the risk of overheating your tank.
Fully Tested: We ensure that every 2nd-hand Theo heater maintains its "click-set" accuracy for precise temperature control.
Sustainable Choice: Buying 2nd-hand is an eco-friendly way to get professional-grade equipment while reducing electronic waste.

Delivery & returns

Free delivery across Malta on orders over €35. Orders are prepared at our shop in Ħ'Attard. See our shipping and refund policies for timings and conditions.

{"id":10098358780210,"title":"Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W)","handle":"hydor-theo-heaters-clearance-25w-100w-250w-300w","description":"\u003cp data-path-to-node=\"1\"\u003eLooking for the most reliable heating technology at a fraction of the cost? We have a limited stock of \u003cb data-path-to-node=\"1\" data-index-in-node=\"103\"\u003eHydor Theo Heaters\u003c\/b\u003e available as \u003cb data-path-to-node=\"1\" data-index-in-node=\"135\"\u003e2nd-hand units\u003c\/b\u003e. These heaters are world-renowned for their patented \u003cb data-path-to-node=\"1\" data-index-in-node=\"203\"\u003ePTC (Positive Temperature Coefficient)\u003c\/b\u003e technology, which makes them far more durable and safer than standard glass heaters, even when pre-owned.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eEach unit has been \u003cb data-path-to-node=\"2\" data-index-in-node=\"19\"\u003efully tested and inspected\u003c\/b\u003e to ensure the thermostat is accurate and the heating element is performing perfectly.\u003c\/p\u003e\n\u003chr data-path-to-node=\"3\"\u003e\n\u003ch3 data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eWhy Choose a 2nd Hand Hydor Theo?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eShatterproof Performance:\u003c\/b\u003e Thanks to PTC technology, these heaters are resistant to thermal shock. They won't crack if removed from water while hot—a major safety advantage for used equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eSelf-Regulating Safety:\u003c\/b\u003e The heating element is designed to never exceed a safe temperature, significantly reducing the risk of overheating your tank.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eFully Tested:\u003c\/b\u003e We ensure that every 2nd-hand Theo heater maintains its \"click-set\" accuracy for precise temperature control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eSustainable Choice:\u003c\/b\u003e Buying 2nd-hand is an eco-friendly way to get professional-grade equipment while reducing electronic waste.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e \u003c\/p\u003e","published_at":"2026-01-29T14:40:30+01:00","created_at":"2026-01-29T14:40:28+01:00","vendor":"Naturepride","type":"","tags":[],"price":1600,"price_min":1600,"price_max":1600,"available":true,"price_varies":false,"compare_at_price":2400,"compare_at_price_min":2400,"compare_at_price_max":3300,"compare_at_price_varies":true,"variants":[{"id":50877283467570,"title":"25W","option1":"25W","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W) - 25W","public_title":"25W","options":["25W"],"price":1600,"weight":0,"compare_at_price":2400,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":50877283500338,"title":"100W","option1":"100W","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W) - 100W","public_title":"100W","options":["100W"],"price":1600,"weight":0,"compare_at_price":2600,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":50877283533106,"title":"200W","option1":"200W","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W) - 200W","public_title":"200W","options":["200W"],"price":1600,"weight":0,"compare_at_price":2900,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":50877283565874,"title":"300W","option1":"300W","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Hydor Theo Heaters – Clearance (25W, 100W, 250W, 300W) - 300W","public_title":"300W","options":["300W"],"price":1600,"weight":0,"compare_at_price":3300,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/naturepride.mt\/cdn\/shop\/files\/CopyofShireburnHelpdesk-Ticket_246929hasbeencreated-2026-01-29T143742.384.png?v=1769693871"],"featured_image":"\/\/naturepride.mt\/cdn\/shop\/files\/CopyofShireburnHelpdesk-Ticket_246929hasbeencreated-2026-01-29T143742.384.png?v=1769693871","options":["Size"],"media":[{"alt":null,"id":43107375776050,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1000,"width":1000,"src":"\/\/naturepride.mt\/cdn\/shop\/files\/CopyofShireburnHelpdesk-Ticket_246929hasbeencreated-2026-01-29T143742.384.png?v=1769693871"},"aspect_ratio":1.0,"height":1000,"media_type":"image","src":"\/\/naturepride.mt\/cdn\/shop\/files\/CopyofShireburnHelpdesk-Ticket_246929hasbeencreated-2026-01-29T143742.384.png?v=1769693871","width":1000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-path-to-node=\"1\"\u003eLooking for the most reliable heating technology at a fraction of the cost? We have a limited stock of \u003cb data-path-to-node=\"1\" data-index-in-node=\"103\"\u003eHydor Theo Heaters\u003c\/b\u003e available as \u003cb data-path-to-node=\"1\" data-index-in-node=\"135\"\u003e2nd-hand units\u003c\/b\u003e. These heaters are world-renowned for their patented \u003cb data-path-to-node=\"1\" data-index-in-node=\"203\"\u003ePTC (Positive Temperature Coefficient)\u003c\/b\u003e technology, which makes them far more durable and safer than standard glass heaters, even when pre-owned.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eEach unit has been \u003cb data-path-to-node=\"2\" data-index-in-node=\"19\"\u003efully tested and inspected\u003c\/b\u003e to ensure the thermostat is accurate and the heating element is performing perfectly.\u003c\/p\u003e\n\u003chr data-path-to-node=\"3\"\u003e\n\u003ch3 data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eWhy Choose a 2nd Hand Hydor Theo?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,0,0\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eShatterproof Performance:\u003c\/b\u003e Thanks to PTC technology, these heaters are resistant to thermal shock. They won't crack if removed from water while hot—a major safety advantage for used equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eSelf-Regulating Safety:\u003c\/b\u003e The heating element is designed to never exceed a safe temperature, significantly reducing the risk of overheating your tank.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eFully Tested:\u003c\/b\u003e We ensure that every 2nd-hand Theo heater maintains its \"click-set\" accuracy for precise temperature control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"5,3,0\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eSustainable Choice:\u003c\/b\u003e Buying 2nd-hand is an eco-friendly way to get professional-grade equipment while reducing electronic waste.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e \u003c\/p\u003e"}