Freezing Family in need of Furnace❄❄

Our families furnace went out on Saturday and we really cannot afford to replace it right now.  We have been using our gas oven to keep the house slightly warm but go to bed with headaches every night and wake up cold by morning.  We normally would not ask for help but we do not know how else to get our furnace replaced without help from others.  We are a family of seven.  Four kids, husband and wife and wife's mom.  Wife's mom is on oxygen and asthmatic and cannot be around all the fumes from the oven. Some friends have loaned us space heaters for temporary use but we really can't leave them on too long before throwing a breaker and for safety reasons ( kids,dogs, and cats ).