Wood and pellets
Add a heat pump to a wood or pellet boiler. Existing heating can provide extra heat on the coldest days.
EKII 2026 changes: heat pump alongside the existing boiler
25.09.2026
EKII 2026: how to add a heat pump alongside an existing boiler, understand support caps and calculate possible support.
HEATING MODERNISATION · FROM 12.09.2026
New heat.
New heat.
More options.
Add a heat pump alongside your existing boiler or choose a modern pellet boiler — with EKII support.
↓
CTC EcoAir 700M / R290
70%standard intensity, up to the applicable cap
85%for Goda ģimene households, up to the cap
€13,000maximum ground/water heat-pump cap*
You can supplement the existing boiler.
A hybrid system lets you keep the current boiler and add a new heat source. Replacement and supplementation are separate supported activities.
Gas and fossil fuel
The hybrid-system activity also covers supplementing boilers using fossil energy sources.
Modern pellet boiler
An old wood or pellet boiler can be replaced with a new pellet boiler that meets programme requirements.
Look at euros, not percentages alone.
Support is the lower amount: 70% or 85% of eligible costs, or the cap defined in Annex 1.
| Output | Ground–water | Air–water | Pellet boiler |
|---|---|---|---|
| <10 kW | 5 700 € | 3 700 € | 2 300 € |
| 10–<20 kW | 7 700 € | 4 700 € | 2 700 € |
| 20–<30 kW | 10 000 € | 4 700 € | 3 000 € |
| 30–<40 kW | 11 400 € | 4 700 € | 3 200 € |
| 40+ kW | 13 000 € | 4 700 € | 3 400 € |
CALCULATION EXAMPLE
A €10,000 unit ≠ €7,000 support
For an air–water heat pump from 10 kW with €10,000 eligible purchase costs, the cap is €4,700. That limits both the 70% and 85% calculation.
4 700 €47%
Three routes to more comfortable heating.
CTC EcoAir 700M
R290 refrigerant, variable output, heating and hot water without a ground loop.
CTC →
CTC EcoPart 700
Compare the total project cost after support, including the ground loop and operating costs.
CTC →RTB Phoenix
PELLET HEATING
RTB Phoenix
Automated pellet heating with cleaning, ash removal and remote monitoring.
RTB →BEFORE CHOOSING
What should you know about the house?
Radiators or underfloor heating?
Air–water and ground–water solutions work with a hydronic heating system. Heat loss, radiator capacity and required water temperature should be assessed.
What if the home only has a wood stove?
A room stove is not a central-heating boiler. The replacement/supplement activity requires a qualifying existing appliance.
Can an apartment owner apply?
Eligibility depends on building classification, ownership, independent engineering systems and approvals.
Is installation also supported?
Installation and all heating-system alteration costs cannot automatically be counted as equipment purchase. Eligible and other costs should be separated in the quote.
Start with the house needs. Then compare quotations.
Collect the existing boiler data and fuel consumption. Request a quote that separately shows equipment output, works, possible support and your own contribution.
EKII ↗
EKII
EKII support calculator
Estimate possible EKII support by activity, output and equipment cost.
Calculated EKII support
EKII support intensity–
Percentage-based support–
Maximum support for this output–
EKII support amount–
Applicant self-financing–
* Informative estimate. Support is capped by the applicable maximum limits. Actual support is determined by the Environmental Investment Fund.
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