Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
I have a cottage house about 600 sq ft in cold climate new jersey. I currently have a 30 year old tank boiler with baseboard heating and has a farthest run of 40 ' for a loop total of 80 feet. I have 7 base boards 4 6 ft 3 2 ft and 1 2 ft. my estimated btu need is about 50000btu. I am planning to replace the boiler with a combi boiler like a Bosch greenstar 100. Not very sure if this would be the right combi to use. the demand for DHW is minimal as this cottage is mostly used in summer and sometimes in winter. Any advice is well appreciated.