DIY Heat Reflector cum Windscreen 自製登山爐擋風板


During the last overnight MTB camping trip, I tried using the DIY mini-windscreen with the Alpine Stove and it was not very effective. The strong wind was blowing from all directions and the flame from the stove was not very constant, making cook time very slow.
在上一次的自行車露營之旅,我嚐試使用自製的登山爐迷你擋風板,結果效果並不是很有效。強風從四面八方吹來使爐火非常不穩定,將烹煮的時間拉長。

I decided to reconstruct another windscreen that can improve the fuel efficiency yet it does not take up space and can be packed with the cookset. The end result, it provides maximum coverage against the wind, the windscreen will also act as a heat reflector and improve the cooking time.
我決定重製一個可以提高燃燒效率的擋風板,它不佔用空間,並可以與炊具收納在一起。使用後的結果,它不但擋住了強風且可讓熱氣包覆在擋風板內進而縮短了烹飪的時間。

I took a MSR heat reflector for this project. This heat reflector is used on cold ground and helps improve the cooking time. However you can use an Aluminum food tray or pie tray that can be found very cheaply in most supermarkets. The thickness of the food tray is almost the same as the MSR heat reflector making them very easy to bend, cut and form a shape. Here's a blog to give you an idea.
我以MSR熱反射板為概念。這種熱反射板是使用在寒冷的地方,可助於熱氣集中並提高烹調效率。自行DIY,可先在超市買便宜的鋁箔食品盒或糕餅鋁箔紙。鋁箔食品盒的厚度幾乎和MSR熱反射板一樣,很容易彎曲,切割,與造型。若要觀看影音示範可連結至博客。

First I took the stove template and make the markings. Slowly using a penknife and cut the markings out. 首先,把錫箔紙包覆在登山爐上抓出一個爐嘴只支架的模型並作出標記然後慢慢地用小刀切割開。

 The shape cut out is not perfect so you might have to do a few more trimmings.
若割出的形狀不是很完美,可以做一些修飾。
Using my pot, place it in the center of the heat reflector and slowly bend all the sides up until it form a circular cup. 用一個鍋放在中心然後慢慢的將外緣往內凹,直到它形成一個圓形杯子的形狀。

Next insert the heat reflector and slowly push it down towards the stove, you might have to do some trimming on the edges. Remember the heat reflector must be slightly below the flame outlet otherwise it will not be effective. Also note if you have an auto ignition, make sure the aluminum does not touch the needle otherwise your auto ignition will not work.
接下來將切割好的錫箔紙慢慢推向爐嘴,您可能需要做一些邊緣修剪。請記住擋風板必須略低於爐嘴,否則不會有效。另外請注意如果你的爐具是自動點火,擋風板不可碰到點火的鋁針,否則將無法正常點火。

Using with Pot 用於小鍋

Using with fry pan 用於平底鍋


Packing the Windscreen cum Heat Reflector


This idea came to me when I saw Snow Peak had a similar product however Snow Peak design did not allow a full wind coverage on the stove and there is a gap between the pot and stove. Wind was still able to blow through the windscreen. Some guy on Youtube made a test using a fan and after 5mins he was not able to boil 2 cups of water.
這種想法的產生是當我看到Snow Peak的產品,但它的設計無法完全擋住風而且鍋和爐灶之間縫隙很大。風仍然能夠通過擋風板吹進。有些人在Youtube上做了一個試驗,使用風扇模擬戶外的風邊吹邊煮了5分鐘,始終沒能煮滾2杯水的量。

When constructing this Heat Reflector cum Windscreen, I have to note that it must cover the pot base and also allow some air to pass through between the pot and stove otherwise the flame will not burn properly. This was achieved by cutting a bigger circle than the stove and the corrugated design on the windscreen will allow some air in.
製做這個熱反射板及防風罩時,我體認到,它必須涵蓋鍋底並同時讓一些空氣流通於鍋和爐子,否則火會燃燒不完全。注意:切割時套上爐嘴的圓要稍微大些,空氣才可經過擋風板的波紋流通。

Personally I feel this is a better windscreen, not only it packs with you cook set but it takes lesser time to cook. Should be able to use on most stove with this design. No harm trying as you can buy this cheap aluminum tray from supermarket and it take less than 15min to make one.
我個人覺得這是一個很不錯的擋風板,它不僅可與你的炊具放在一起而且烹調所需時間較短。此種設計之擋風板應能適合大多數的登山爐。您可試著做做看,只需不到15分鐘便可完成!

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