Bought this product last year. Probably had one of the three bulbs broken upon receipt. Upon firing it up this year, I find that a second bulb is bad. With only one bulb, you have to crank it way up to get any heat. Upon opening the unit, I found all three bulbs damaged, one was missing the top cap and the other 2 had big chips out of the contact base. It was a shear wonder that none of the bulbs shorted to the metal frame/case. The 5 year warranty gets you a refurbished item, at an unspecified cost. I will call tomorrow and see what 3 new bulbs will cost. These bulbs are extremely fragile and fabricated in Mexico, and so far, only available through EdenPURE it seems, as I haven't found any other source so far, and evidently since the "J048" bulbs (500W 115v) are propritary, Sylvania doesn't list them AS AN AVAILABLE PRODUCT. The Bob Vilas and EdenPURE and other advertising tauts the heater as made in the USA. Notice the statement above: "designed and engineered in the USA". This unit is made in China by You Long Industrial Co. Ltd. This equates to poor engineering since the distribution of these items is by UPS & USPS, You would expect the use of ruggedized bulbs. We noticed no decrease in our gas heating bills last year, but did see a slight rise in our electrical bills. Not sure the $400 for one years use, is an effective investment. Tauted as being quiet, but keeps the wife awake when used in the bedroom. So far I'm disappointed in the quality.