He realised that the open stone fireplace he had painstakingly built was inadequate for heating the building and fuel prices for their oil boiler were increasing. He got the idea in his head to build an efficient stove to keep his family warm and spent months sketching, plotting and planning his first Fisher Wood Stove. Bob Fisher had some basic criteria that he wanted from his stove, and his wife supplied some of her own: • It had to be an airtight wood stove • Ventilation needed to be restricted and controlable with vents • It had to be able to keep a fire in over night • Carol wanted to be able to cook on the top of the stove • The stove couldn't smoke when the door was opened • The Fisher Stove had to last - this called for heavy duty steel and firebrick. Modern stoves now are substantially more efficient than Fisher's models, but very few are designed to be able to keep a fire in overnight. With these ideas in mind Bob Fisher designed what became the very first 'Papa Bear' Fisher Stove. Getting this far wasn't easy, Bob had to trade in his truck and borrow funds from his mother but once everything came together he assembled the stove, over a day or two The Papa Bear was an instant success and soon Bob had neighbours coming to look and ask if Bob could make one for them too. With the help of another loan Bob bought materials to make ten more and built a small business making and selling stoves himself. Pengertian Wifi Adalah. Program El Fenotipo Extendido Pdf Gratis.