Are they prone to the impeller blocking up at all. I have one in a woodchip boiler and it doesn't seem to want to transfer the heat as it did. This happened since the cold weather. I wonder if it could be blocked although they've claimed to have designed it in such a way that this doesn't happen.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local