Is maths ever useful...?`
Is maths ever useful...?
Okay, here's a question for you:
UK building regulations require that when a wood burning stove is installed in a property, there needs to be a permanently open air vent to allow air to get to the stove, if the output of the stove exceeds 5 kW. The size of this vent is 550mm2 for every kW over 5.
What Diameter of air vent is required for a stove outputting 25 kW?
Another question:
When installing a stove into a property with no existing chimney, we use a pre-fabricated stainless steel twin wall insulated flue. This comes in fixed lengths with fixed geometry elbows, of 30° and 45°.
When planning such an installation you discover that in the loft space directly above where the stove is to go, there is a wooden beam. It is 200mm wide. The twin wall flue is also 200mm wide. The beam is directly above the flue. The installation instructions for the flue system require a minimum clearance of 50mm between it and anything combustible (like a wooden beam).
If you use two 30° bends, what is the minimum length of pipe (including the angled sections on both bends) required to move the pipe far enough to the side to clear the beam safely? What if you use 45° bends?
These questions are ones I have to answer every day in my job. They require maths that I learned at secondary school (aged about 15).
I'm going to screen comments, so if you feel like having a go at answering them, you can comment with your answers (showing your workings, of course...).
Okay, here's a question for you:
UK building regulations require that when a wood burning stove is installed in a property, there needs to be a permanently open air vent to allow air to get to the stove, if the output of the stove exceeds 5 kW. The size of this vent is 550mm2 for every kW over 5.
What Diameter of air vent is required for a stove outputting 25 kW?
Another question:
When installing a stove into a property with no existing chimney, we use a pre-fabricated stainless steel twin wall insulated flue. This comes in fixed lengths with fixed geometry elbows, of 30° and 45°.
When planning such an installation you discover that in the loft space directly above where the stove is to go, there is a wooden beam. It is 200mm wide. The twin wall flue is also 200mm wide. The beam is directly above the flue. The installation instructions for the flue system require a minimum clearance of 50mm between it and anything combustible (like a wooden beam).
If you use two 30° bends, what is the minimum length of pipe (including the angled sections on both bends) required to move the pipe far enough to the side to clear the beam safely? What if you use 45° bends?
These questions are ones I have to answer every day in my job. They require maths that I learned at secondary school (aged about 15).
I'm going to screen comments, so if you feel like having a go at answering them, you can comment with your answers (showing your workings, of course...).