Solar Heating of Swimming Pools

Solar Pool Heating for Swimming Pools

We at SUNZ are able to offer:

  1. Copper under glass collectors
  2. Techno-Solis polypropylene collectors
  3. Solar Pool Heating Systems

Did you know that 70% of heat loss from the swimming pool is from evaporation, 20% from radiated heat loss and 10% from conduction through the sides and bottom of the pool. For every 10 kph of air (wind) movement across the pool surface there is a 300% increase in evaporation. Each pool is in its own micro climate – therefore temperature gains from similar sized solar pool heating systems will vary from pool to pool. Pool covers reduce evaporation, thereby keeping the pool warmer.

(See US Dept of Energy website – Reduce Swimming Pool Energy Costs)

Factors that affect the natural temperature of swimming pools are:

  • Shade over the pool
  • Colour of the pool and surrounds
  • Wind exposure
  • Evaporation of the pool water
  • Ambient air temperature
  • Humidity
  • Geographical location
  • Season of the year

Accurate measurements of your swimming pool and the proposed position of the solar collectors (panels) are required before we can supply a price to solar heat your pool.

To size and price a swimming pool heating system we need to know the following:

  • Dimensions of the Surface Area of the Pool (SAP)
  • Roof area available for positioning the solar collectors
  • Angle and orientation of the roof to the sun
  • Distance from the pool pump / filter to proposed position of solar collectors
  • Swimming season expected
  • Any shading of pool and solar collectors by trees, etc
  • Is there a pool cover and is it used?

A Complete Solar Pool Heating Solution

If you only intend heating your pool, and not your house hot water, Techno-Solis is the way to go as it is more cost effective than glazed panels. Techno-Solis is cheaper per square metre than glazed panels, and does not require expensive heat exchange equipment.

On the other hand Techno-Solis will not produce enough heat in the higher temperature range to heat household water.

In Summer, at swimming pool water temperatures (28-30 degrees C) Techno-Solis will produce more hot water than glazed panels for the same amount of capital outlay.

For house hot water temperatures (60 degrees C) glazed panels will far out-perform Techno-Solis and are the only realistic way to heat your house hot water.

In winter, regardless of use, glazed panels are the only way to go.

Our Combi system can heat your pool and the house hot water using the same panels...and your under floor/radiators as well, if you have them.

Check out some of our projects that use the techno-solis solar system… click here!

SUNZ Energy Specialists at your service...
SUNZ Energy Specialists can design and install a solar pool heating solution to suit your lifestyle.

  • call us on 0800 SUNZ NZ (0800 78 69 69) and get transferred to your nearest agent
  • fax us on 09 263 9837
  • send us an email at info@sunz.co.nz
  • visit our Showroom located at 605 D, Great South Road, Manukau City, Auckland