RM twin coil Solar Unvented Cylinder 300ltr Indirect Mega Flow Stainless Steel 25 Year Guarantee

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RM twin coil Solar Unvented Cylinder 300ltr Indirect Mega Flow Stainless Steel 25 Year Guarantee

SKU: 8719

Estimated Delivery:

4 to 7 Working Days ✝FREE
Orders placed before 1pm are processed the same day, delivery times are between 8am & 6pm Monday to Friday, all deliveries require a signature, for delivery instructions please use the notes section during checkout.
Please see below for Items you will also require for this product.

Availability: In stock

Regular Price: £1,703.53

£936.52 (inc VAT)

✝ Subject to stock availability. UK Mainland only. Delivery fees and times to Northern Ireland, Scottish Highlands & Isles, Isle of Man, Isle of Wight, Isles of Scilly, and the Channel Isles may vary. Deliveries are made during working days only.

Product Description


25 Year Guarantee Unvented CylinderSolar Heated Unvented Cylinder300 Litre Capacity Unvented CylinderUnvented Cylinder

The RM Stelflow cylinder is a mega flow type pressurised stainless steel hot water cylinder. A solar indirect cylinder has another coil allowing you to harness the power of an alternative heat source such as solar panels or ground or air source heat pumps. This domestic hot water tank is made in Britain to exacting standards, featuring a coil in coil heat exchanger giving high recovery rates, meaning you can run a bath upstairs and still wash up in warm water downstairs. As an indirect cylinder, when not being heated by your alternative heat source, the water is heated by your system or open vent boiler. These cylinders come with an immersion heater for emergency hot water, a temperature and pressure relief valve, a 15mm x 22mm tundish, expansion vessel and an expansion vessel hose, meaning your fitter has everything they need to complete your installation. This Unvented hot water tank is Vertical and stands 2041mm high, giving you a capacity of 300 Litres stored hot water.

  • Length: 2041mm
  • Diameter: 545mm
  • Capacity: 300 Litres
  • Water Heating System: Solar Indirect
  • Vented or Unvented: Unvented
  • Vertical or Horizontal: Vertical

Technical Information

Additional Information

SKU 8719
Manufacturer ID 300DS
Height 2041mm
Diameter 545mm
-Water Heating System Solar Indirect
Guarantee Length 25 Years
Material Stainless Steel
-Vented or Unvented Unvented
-Vertical or Horizontal Vertical
-Capacity 300 Litres


Here at TradePlumbing.co.uk we have the returns period is the standard 30 days, as we understand that sometimes there may be the odd item left over from a project or you may have an unexpected delay to a project meaning that you need the added peace of mind when ordering products in case a return is necessary.

We truly believe in being able to offer customers a flexible service and this extended period allows us to go that little extra to help you when in need, as long as goods are returned in the same condition as received we are happy to help.

To return any time initially please email your request to our Customer Support team at customerservice@tradeplumbing.co.uk along with your TP - Order Reference, please allow at least 1 working day for response and we will take it from there.

To View our complete Return Policy Click on Return and Refunds