Fitbit Blaze tracked calories burned are way too high

[Kindofblue76]

I am extremely unhappy so far with my Blaze. I've had it for about 10 days and the calories it says I'm burning are anywhere from 4,000 to 6,000 each day...even on days that I don't work out. I'm 40 yrs old, 6'5" and 280lbs. So far today it's saying I've burned 2,200 calories and all I've done was snowblow my driveway. I sometimes wake up and it tells me I e already burned 700 calories while I was asleep. Recently, my blood pressure has been unusually higher. Not sure that is effecting the calories count that much. The other day, it counted 670 calories burned after sitting in a sauna for 30 minutes.

I have a goal weight and the time set to accomplish that goal weight. I have a daily calorie count to stick to as well. But with the calories burned count being so inaccurately high, it screws up my food log because it tells me I have way more calories to consume because tthe "calorie out" count is so high. FYI...I need to stay between 1,800 and 2,100 to hit my goal. On most days, my Fitbit tells me I still have over 2,000 plus calories left. Not cool. 

I've got to get this fixed or my Blaze is getting returned. Please help or offer any advice you may have. For someone trying to take a healthier approach to life and get in shape, this is extremely disheartening. 

Moderator Edit: Clarified subject

[Rich_Laue]

Personally @Kindofblue76 I can see how snow.blowing could add to the calorie count, did you get a lot of false steps during this time period? 

I did go to a BMR calculator and it says you should be burning 2300 calories a day if you don't get out of bed. Not knowing much about you, I can't comment on the 4000+ calories 

[moondigger]

It's calculating your total burned calories, not just your exercise calories burned. As Rich pointed out, your metabolic base rate would cause you to burn 2300 calories per day even if you didn't do any exercises at all. Breathing, heart beating, digestive system working -- all burn calories.  Your brain consumes a rather significant number of calories just through normal function as well. 

I used to use the Lose It app to track calories consumed vs burned in exercise, and it only really tracks the calories burned via exercise. So this confused me a little bit at first because Fitbit adds in the base rate as well. Waking up with several hundred calories already burned makes sense. You'd have to be dead not to burn calories while sleeping.  ;^)