How to look up a heat pump's meldcode (ISDE notification code)

How to find your heat pump's ISDE notification code (meldcode) in RVO's official list, and what to do if your model is not on it.

Updated on 17 October 2026

How to look up a heat pump's meldcode

To apply for the ISDE you need your heat pump's meldcode (notification code). You will find it in RVO's notification code list (also called the equipment list): an overview of approved brand and product names that qualify for the subsidy [1][2].

Step by step

1. Go to the Meldcodelijst Warmtepompen (heat pump notification code list) on rvo.nl [1].
2. Search by brand, type or product name. Use the exact model number from the quote or the rating plate; names within one brand often look alike.
3. Write down the meldcode and check the indicative subsidy amount listed for the model [1][3].
4. Prefer a spreadsheet? RVO also offers the list as an Excel download, updated monthly (as of 17 October 2026, the October 2026 version). According to RVO, no rights can be derived from the download [2].

Quicker: search for your meldcode directly in our heat pump list, by brand, type or meldcode. Every model has its own page, for example the NIBE F2040-8 or the Daikin 5MWXM68A9 + EKHWET90BV3. Prefer to browse by brand? See all brands on the ISDE list.

RVO's tip: check before you buy that the heat pump is on the list, and ask your installer to put the meldcode on both the quote and the invoice [3][4].

Is your heat pump not on the list?

You can still apply, but you need to include the product description and technical documentation. RVO then assesses whether the unit meets the requirements; if it does not, the application is rejected [1][3].

New heat pumps with a capacity of 70 kW or more are no longer added to the list; for those a product description is required [2].

Why is a model sometimes missing from the list?

RVO's requirements include [2]:

• it is an air-to-water, ground-to-water or water-to-water heat pump (air-to-air is excluded);
• an energy label of at least A++ (since 1 January 2024);
• registered in the European EPREL database, up to and including 70 kW thermal capacity;
• supplied with a label, product fiche and technical documentation.

On top of that, from 2026 split air-to-water heat pumps with a refrigerant charge under 3 kg and a GWP above 750 are no longer eligible [3].

For more on amounts, see ISDE heat pump subsidy 2026: how much do you get?.

Sources

1. RVO, ISDE: Meldcodelijst Warmtepompen (checked by RVO on 9 October 2026, accessed 17-10-2026): https://www.rvo.nl/subsidies-financiering/isde/meldcodelijsten/warmtepompen
2. RVO, ISDE: Meldcodelijsten (accessed 17-10-2026): https://www.rvo.nl/subsidies-financiering/isde/meldcodelijsten
3. RVO, ISDE: Warmtepomp woningeigenaren (accessed 17-10-2026): https://www.rvo.nl/subsidies-financiering/isde/woningeigenaren/warmtepomp
4. RVO, ISDE: Subsidie voor verduurzaming van uw woning (accessed 17-10-2026): https://www.rvo.nl/subsidies-financiering/isde/woningeigenaren

This guide was written with the help of AI and checked against its sources.

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