Frequently Asked Questions

FAQ

Whether you’re a new Alde owner or a prospective buyer, our frequently asked questions might save you the time of contacting us.

Setting Day/Night Modes

Day and Night Mode can’t be set differently for each day of the week so most people will set their modes to All.

Most people want the heating to drop down at night and come up during the day, so they’d only set Night Mode. You’d only set Day Mode if you routinely wanted the heating to drop down during the day. If you have a full-time job, for example.

We have a more in-depth guide on our dedicated site for Moosewerks, Alde’s UK HQ.

Go to Moosewerks
Top Questions
  • In summer, how do I get hot water without central heating?

    Set the desired room temperature to 4 °C below ambient on the control panel.

    The central heating will cut out— the heating fluid will not be circulated so the living area will not be heated.

    Hot water will still function as normal, and the central heating will cut in if the ambient temperature drops below that set.

  • What fluid do I top-up my Alde heating system with?

    If your heating fluid is magenta in colour you can use an Alde-approved antifreeze product to top up with.

    If it is not magenta in colour it is safest to top-up with a cupful or two of deionised water. You will have slightly less protection from frost, corrosion and bacteria, but damage caused by mixing incompatible antifreeze is the bigger risk. Then change the heating fluid as soon as practicable and use an Alde-approved antifreeze.

  • What antifreeze products are Alde approved?

    In the UK, they are:

    • Alde Protective Premium (Any, G12evo, G12++ and G13 are all intermixable)
    • Fuchs Fricofin DP
    • Comma XStream G40
    • VW Group G12evo

    These are all available ready to use, pre-mixed with deionised water. Always read the label.

    These products all have a 5-year life. Corrosion damage caused by substandard heating fluid is not covered by warranty.

    The products above conform to Alde Approval 40X0 2024. We do not recommend the use of non-approved products such as Triple QX G13 or Qualkem G13.

  • How often should I replace my heating fluid?

    Heating fluid using an Alde-approved antifreeze should be replaced after 5 years.

    All Alde-approved antifreeze is magenta in colour. If your heating fluid is not magenta in colour, replace it as soon as practicable using an Alde-approved antifreeze product.

    Corrosion damage caused by substandard heating fluid is not covered by warranty.

  • In winter, can I use my central heating even though the fresh water is drained down?

    Yes, operate the Alde system normally. No harm will result as there are no electric heating elements in the hot water cylinder.

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