TOMERSUN 3.9 inch Height Extra Mini Heat Powered Stove Fan Suitable for Small Space of Wood/Log Burner/Fireplace top Description Why do we design the Extra Mini stove fan?Many homes here have classical install iron fireplaces that have a limited space on the top.However,many stove fans in the market are not suitable for these homes.Now we design this extra mini stove fan which height is 10cm to meet their requirement.How is working?The stove fan generates its own power by the heat from the stove. The fan uses thermoelectric technology to convert a temperature difference into electricity. At the center section of the fan base is a unique thermoelectric module. The module change the heat into the electricity.How to use?Position the stove fan on a smooth flat surface of your stove top ,near the side or back of the stovepipe.The hotter the stove surface is, the more air the fan circulates.Attention:Recommended surface temperature is between 185F - 660F (85C - 350C). Temperatures above this range may damage the fan and the electricity generating units and invalidate your warranty.Never handle the base of the stove fan, do not set the stove fan down on an unprotected surface when hot. To move or carry the fan, always use the extendable handle while wearing gloves .Keep fan away from small children when in use.What if you have questions or concerns?Our Customer Care Team is available and ready to assist you. Simply email us with your Order and we'll get back to you within 24 hours.Recommend buying 2 pieces to take full advantage of the heat from the stove. Features: Mini Size--3.9 Inches height suitable for the small space on stove topNo Batteries or Electricity required--The stove fan uses heat from the stove surface to spin,adjust its speed automatically with the stove surface temperatureLonger lifetime--There is a Bi-metallic safety device in the base of the fan.If the surface temperature rises above around 300C,the safety device gently elevates the front of the fan to protect the TEG and motor.Whisper-quiet--The only moving part is the blade assembly.You won't even know this fan is there,but you'll FEEL the WARMTH!Less Consumption ,More Efficiency--Reduce the fuel consumption and make the room warmer quickly Product Details: Product Dimensions: 8.7 x 4.1 x 3.9 inchesItem Weight: 2.2 poundsShipping Weight: 2.45 poundsManufacturer: TOMERSUN Payment We accept Paypal payments only. Sales tax may be applied to your purchase as we possess sales tax certificates for all states we collect sales tax in. If your state is one that we charge sales tax in, you will see the sales tax charge at time of checkout before you submit payment. Delivery Expedited shipping is free. Handling time on our orders is normally between 1-2 business days. Your order should reach you within 1-3 business days. We do not ship to AK, HI, PO boxes, or APO addresses. We're not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. We don't accept requests to change shipping addresses post purchase. We do not ship to AK, HI, PO boxes, or APO addresses. We are not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. Please note that manufactures update their packaging from time to time and that the packaging images shown in our product may vary from what you ultimately receive however be assured you are receiving the identical contents you ordered. Return Policy You may return new, unopened items within 30 days of delivery for a refund, and a restocking fee may apply. Return shipping fees are not refundable. Message us for return instructions if you have questions. Support & Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction. Contact us via eCRATER messaging and we will respond within 1 business day. Our office hours are 8AM-4PM PST Monday-Friday. We thank you for your business!