Can I run a wood pellet boiler and a gas combi boiler on same circuit

Hi, Given the increase in gas prices, and that I have a space in a cold end of the house for a Lincar 740 wood pellet boiler, I would like to know if I can install this on the same circuit as the existing gas combi boiler, and if so what are the pros/cons complications involved? I have the perfect location for it in an old fireplace in the cold room, so easy to install the flu and it's adjacent to all the water and CH pipes. The idea is that I will switch to wood pellets, if even only for CH, but it would be good to also have the gas for backup and or hotwater. Thank for you advice. Dan