The output rating of a 96% efficient boiler or furnace rated at 100,000 input.
1kW is 3,412.13 BTU/hr
65,000 BTU per hour equates to 19.05 kW
12,000 BTU/hr
Almost 340,000 BTU per hr
4600 BTU/hr is 1.3481268kW
14,500 BTU/hr is 4.25kW
35kW is 119,424.97 BTU/hr
2.25HP is 5,724.95 BTU/hr
34kW is 116,012.828 BTU/hr
70000 BTU/hr = 20.5kW > 70000 BTU/min = 1230.9kW > 70000 BTU/sec = 73854.2kW
11800 BTU/hr is 3.46kW