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2.5kw HydroQuip Flow Thru "Challenger" Heater
Official high-quality replacement 2.5kW HydroQuip heater C2250-0309ET used specifically on hot tubs and spas. This particular 2.5kw heater uses Tecmark 3902 pressure switch (Sold separately) for flow detection and is secured within HydroQuip blue-faced metal control boxes with twin stud mounting. Not a very common heater but found on Gulf Coast HydroQuip spa control packs. This heater has been manufactured by many brands over the years, Therm Products, RMF, Spa Components & Gecko. This HydroQuip heater is now the direct replacement.
The following items are included with this complete HydroQuip spa heater assembly:
- 2x 2-inch heater union gaskets
- 2x stud mounting and 3/8" fixing nuts
- 1x Hi-Limit sensor securing pouch
HydroQuip Heater Overview
- This heater can be fitted to HydroQuip control boxes from Gulf Coast Spas and others.
- A metal pouch is located on one side to secure the hi-limit temperature probe in place.
- Supplied without pressure switch is used to determine how much flow is passing through the heater tube and prevents heater failure.
- Found on older spa models from brands such as Gulf Coast Spas.
Heater Specifications
- Manufacturer - HydroQuip
- Part Number - C2250-0309ET
- Type of Product - Spa or Hot Tub heater assembly
- Kilowatt Rating - 2.5kW
- Element Material - Incoloy
- Flow Detection - 2 PSI Tecmark pressure switch 3902
- Sensor Type: Temp & hi-limit
- Plumbing Union Size: 2 inches (78mm thread OD)
- Pipework Connection Size: 2 Inch male (78mm OD)
- Length: 380mm
- Tube Diameter: 60mm
- Distance of Terminals: 31.75mm
Heater Fitting & Removal Guide
Loosen the two heater union collars by hand or with a wrench and if necessary the collars can be split into two and removed completely by unscrewing the two screws on the collar. Remove the chassis earthing copper cable from the heater tube and the Hi-Limit sensor from the securing pouch. take the lid off of the spa control box and disconnect the two spade connectors from the pressure switch. Unthread the pressure switch from the heater tube and then undo the two 3/8" nuts from the heater to control box mounting stud. Remove the heater completely and reinstall in the same order. New gaskets are supplied with the new heater so replace and fit these to your heater union connections. We advise renewing the pressure switch when installing a new heater, this is is listed in the related products below.
We Are Here To Help!
It can be a bit confusing choosing your new spa heater as brand names and models are not always written on them. The quickest way is to simply send us some images of the complete spa heater assembly you need the replacement for through our Contact us page and let us do the work for you.
Your order will generally be dispatched on the same working day as receipt of payment is received before 2pm. We ship via DPD with tracking.
When you place an order, it's often better to provide us with your mobile telephone number instead of your landline number. This is so we can give it to our courier, who will then text you your exact time and date of delivery, even down to the hour it will be delivered.
Please be aware: All the delivery prices listed below are inclusive of VAT to the UK. All other countries will not be charged VAT. *All spa covers and chemicals can only be shipped to UK mainland, please call for a shipping quote for all other delivery destinations.*
SPA COVERS: Unfortunately due to the size of spa covers and the costs to send them they are not included within the free shipping method over £100. Shipping covers are charged at £24.00 with a 1-2 day service when ready, stock covers take around 10-14 days from order to be shipped, custom covers 8-10 weeks from date of order.
| Region | Cost & Delivery Time |
| Delivery to England, Wales & Scotland (Excluding Scottish Highlands & Islands) |
Order values over £100 - Free (DPD Next working day) |
| Scottish Highlands & Islands | Delivery to the Scottish Highlands & Islands (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-3 days - £25.62 |
| Northern Ireland | Delivery to Northern Ireland (Up to 20 kgs), Prices are doubled when over 20 kgs. Economy delivery 2-3 days - £18.00 |
| Isle Of Scilly | Delivery to Isles of Scilly (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-3 days - £26.90 |
| Republic Of Ireland | Delivery to the Republic of Ireland (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-3 days - £15.00 (ex. VAT) |
| Isle of Man | Delivery to the Isle of Man (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-5 days - £26.90 |
| Jersey & Guernsey | Delivery to Jersey & Guernsey (Up to 20 kgs), Prices are doubled when over 20 kgs. DPD 2-5 days - £25.00 (ex.VAT) |
| Delivery to Belgium, France, Germany, Luxembourg & Netherlands. |
Delivery 2-3 days - £15.00 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Czech Republic, Slovakia, Italy & Spain (Mainland). | Delivery 2-5 days - £22.42 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Switzerland | Delivery 2-5 days - £48.04 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Austria & Denmark | Delivery 2-5 days - £18.15 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Iceland, Norway & Serbia | Delivery 4-6 days - £68.32 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Croatia, Estonia, Finland, Hungary, Poland, Portugal, Slovenia & Sweden | Delivery 4-6 days - £29.36 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Canary Islands: Gran Canaria, Tenerife, La Palma, Lanzarote, Fuerteventura, La Gomera, El Hierro. | Delivery 4-6 days - £82.20 ex.VAT (up to 5kgs), £118.49 ex.VAT (up to 10kgs), £192.15 ex.VAT (up to 20kgs), |
| Bulgaria, Greece, Latvia, Lithuania, Romania. | Delivery 4-9 days - £38.43 ex. VAT (up to 20kgs), Price doubles when over 20 kgs |
| Balearic Islands: Majorca, Minorca, Ibiza, Formentera, Cabrera. | Delivery 4-6 days - £32.03 ex. VAT (up to 20kgs), Price doubles when over 20 kgs. |
| Cyprus | Delivery 4-6 days - £79.00 ex.VAT (up to 5kgs), £117.43 ex.VAT (up to 10kgs), £194.29 ex.VAT (up to 20kgs). |
| United Arab Emirates, Bahrain, Qatar. | Delivery 4-9 days - £122.76 ex.VAT (up to 5kgs), £186.81 ex.VAT (up to 10kgs), £256.20 ex.VAT (up to 15kgs), £320.25 ex. VAT (up to 20kgs). |
| Turkey, Russia & Malta. | Please call us for a quote. |
| USA | Delivery Via UPS 4-5 Days - £75.00 ex.VAT (up to 20kgs), Price doubles when over 20kgs. |
| Worldwide Shipping | We can ship parts worldwide. If your country is not listed above then please contact us for a shipping quote. |
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