Thursday, 13 September 2012

AGAMA biogas water heater passes the test

AGAMA South Africa water heater workshop

AGAMA biogas water heater passes the test

A stylish, stainless steel, 8L/minute biogas water heater has been added to the AGAMA appliance range.

At AGAMA Biogas, in Cape Town, South Africa, we are constantly seeking ways to improve our service to our customers.

We seek to develop appliances that burn biogas efficiently and look good in your kitchen or bathroom.All the appliances we adapt are individually tested in our workshop to make sure they burn optimally before being delivered to our clients.

Converting an LPG appliance for use with biogas involves 2 tasks:

a) enlarging the jets that the gas flows through

b) reducing the amount of air that reaches the flame

With simple cookers this is fairly easy to do, but we quickly discovered that with water heaters this was not as straightforward as it might appear. A water heater contains a number of jets situated deep within the "guts" of the appliance and not easily accessible for adaptation.

Dewhot are our chosen suppliers for biogas converted water heaters. We tested the first converted water heater in our Cape Town workshop. In seconds the water entering the appliance was up at 56 degrees centigrade. For a comfortable shower 44 degrees is more than adequate.

The faster the water flow rate through the appliance the cooler the water coming out the other end. However, if the water is still too hot you simply mix in cold water. Water heating, however is high energy work. The heater will consume 3.4 m3 of biogas per hour when operating at full flow. The digester can only produce 2 m3 of biogas per day and stores 1 m3 of gas at any one time. In theory you should be able to get 3 to 4 showers from the well fed digester twice daily.

We recommend low flow shower heads and quick showers to keep your costs and your use of the earth's resources to a minimum.


Marisa Naude

Comments (6)

  • Terry


    05 October 2012 at 12:38 |
    Can we have some details about prices please... and what other appliances we can use.. gas freezers?
    • Greg Austin

      Greg Austin

      08 October 2012 at 12:15 |
      Hi, we'll drop you a price list by email.

  • Erla


    21 October 2012 at 13:00 |
    Same questions as above.
    • Greg Austin

      Greg Austin

      21 October 2012 at 14:37 |
      Thanks, we'll drop you a price list on the email address provided.

  • Eugene Smit

    Eugene Smit

    23 January 2013 at 18:21 |
    Hi I am planning a new home and would also like to know what other Biogas appliances are available as well as the pricing please.

    Can you also give me an indication what the price difference would be between the BiogasPro6 and proposed BiogasPro3.

    • Robin


      15 February 2013 at 01:03 |
      Hi Eugene. The cooking plates and hot water heaters are the only appliances we supply as they are customised to biogas in South Africa. Prices will be available on request.