On Sat, 16 Feb 2019 22:14:03 GMT, Pat
m wrote:

I have 200 amp GE panel in my home. Total of 840 amps adding each circuit
breaker capacity. I have no air conditioning and no electric heat. I have
space and want to add one 2-pole 50 amp breaker 240v. Do I have the capacity?
Thank you.

You really can't answer that question without knowing what the load
is. What other 240v (2 pole) breakers are in the panel and what do
they feed? (water heater, range etc)
How big is the house (approx sq/ft)
Do you have 2 empty slots?