I'm going into my 3rd season w/ my VF3000 boiler, original grates which are still in great shape as far as I can tell. I've seen different instructions in say the DVC stoker stove (cement grates in) vs. the instructions I got w/ my boiler which said nothing about cementing the grates even though the stoker mechanism is essentially the same in the boiler as the stove.
Since this will be the first full and probably real winter w/ my little one in the house, I anticipate needing some more BTU's in my upstairs forced air zone. I have the heat exchanger in plenum setup, and in prior years we really didn't need to heat the upstairs as our MBR is on the 1st floor.
My thought is this year to cement the grates in, more airflow directed to coal and more BTU's/hr? Maybe the difference is negligible? Was hoping to hear from some folks that cemented them in and noticed faster burn on the same feed settings. Thanks