Gas Appliance Guide

Single and Twin Coil gravity Hot Water Cylinders featuring a solar input coil - with or without conventional boiler coil.

Sunspeed Solar Hot Water Cylinders

Twin coil hot water cylinders solar coil and boiler coil and/or immersion heater/s

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Please Note:

The Sunspeed Cylinder is only compatible with a gravity cold water supply and the boiler coil (where fitted) is compatible with a pumped heat source. If you require a gravity boiler coil for an unpumped heat source (such as an AGA or wood burning stove) this requires a different type of heat exchanger. Please enquire.

If you require a solar cylinder for use with a mains pressure water please look at the Torrent Multifuel if you wish to remain open-vented, or Stainless Lite for an un-vented hot water system.

Sunspeed Solar Cylinders

Cylinders for use with heat pump or solar heat source

SunSpeed domestic hot water cylinders are designed for use with heat pumps or solar panels. The heat exchangers are purpose designed for this application because: -

(a) The primary flow temperature from these sources will normally be significantly lower than from conventional heat sources e.g. gas boilers. Therefore heat exchangers with large surfaces areas will be necessary to transfer the heat at low temperature differences. (b) A second heat exchanger for conventional heat sources e.g. gas boilers will often be required. In this case the heat pump/solar panel heat exchanger must be of a compact design and capable of being fitted very low down in the cylinder.

Heat exchanger specification

The heat exchanger in a SunSpeed cylinder designed for either SOLAR or HEAT PUMP is manufactured from ‘Integron’ integrally finned copper tube and is only suitable for pumped circuits. In a SunSpeed 2, the heat exchanger i.e. coil for use with a conventional heat source is manufactured in either 22mm or 28mm plain copper tube to meet the requirements of BS1566 and Part L of the Building Regulations.

Sunspeed Solar high performance cylinder

The ‘SunSpeed’ heat exchanger is designed to heat the cylinder water content from 10˚C to 49˚C in one hour with a constant primary flow temperature of 55˚C. The heat exchanger for use with conventional heat sources (e.g. a gas boiler) in SunSpeed 2 is rated to give the recovery time under 30 minutes as specified in BS1566. When a heat pump is operated during “off peak” electricity supply times only, then the heat exchanger rating should be matched to the heat pump output. For example a 450 litre cylinder may be designed to be heated by 7.5kW heat pump operating during off peak times only; the designer would specify the storage required with SUN 28 heat exchanger.

(Colour of Jacket may vary)

Specification Table Click to enlarge

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SUNSPEED 1 (Single coil copper cylinder - Solar coil but no Boiler Coil)

Cylinder Size (excluding insulation)	Coil	Nominal Capacity (Litres)	Price (inc VAT)
1050 x 400	Sun28	114	£403.07
1200 x 400	Sun28	134	£439.74
1300 x 400	Sun28	146	£470.98
1400 x 400	Sun28	158	£428.64
1500 x 400	Sun28	170	£450.11
1800 x 400	Sun28	206	£559.58
1050 x 450	Sun28	144	£374.93
1200 x 450	Sun28	166	£399.78
1300 x 450	Sun28	182	£493.46
1400 x 450	Sun28	196	£514.79
1500 x 450	Sun28	218	£554.55
1800 x 450	Sun35	277	£644.34
1800 x 500	Sun35	318	£1,053.41

SUNSPEED 2 (Twin Coil copper cylinder - Solar coil plus boiler Coil)

1050 x 400	Sun28	114	£412.57
1200 x 400	Sun28	134	£449.13
1300 x 400	Sun28	146	£481.38
1400 x 400	Sun28	158	£503.86
1500 x 400	Sun28	170	£528.59
1800 x 400	Sun28	206	£654.73
1050 x 450	Sun28	144	£441.98
1200 x 450	Sun28	166	£470.62
1300 x 450	Sun28	182	£503.86
1400 x 450	Sun28	196	£525.17
1500 x 450	Sun28	218	£563.68
1800 x 450	Sun35	277	£654.73
1800 x 500	Sun35	318	£1,061.52

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