I just bought an 11 year old home with forced gas heat. The furnace is in the far west side of the house -- resulting in great bedroom heat but not the best in the great room and kitchen/dining room. Basement is unfinished (insulation only) and has 4 vents feeding this unused area. The service was done and my service agent suggested in blocking 3 of the 4 vents in the basement to improve circulation in the rest of the house. It has but marginal at best. Any other suggestions out there that won't cost me an arm and a leg?