New heat in the shop ..electric furnace help

Thank you very much..I didn't think about the breaker in the panel box being to small til I read your first comment then I said to myself the Welder is not a steady pull of power so it can continue to run the heater is a constant pull with needs a bigger breaker ..I hope this solve the problem. .I need heat and heat those loud blower heaters ..this was free and plan to put 2 vents on the bottom blowing heat from front to back of shop and hope it warm things up pretty good. ..