I just bought a Wagner wallpaper steamer and im using it to heat up water in a 55gal barrel for manure pasturization. Testing it out on a small scale, i was able to heat up 15L of water to 150 degrees in 15 minutes (perfect temperature for pasturzation at 3 hours).. The barrel will only be half full of water, at 125L. The remaining space will be displaced by horse manure. Is it worth trying it out on such a large scale? Or was my heat gain (15L / 15 minutes to 150 degrees) too long?