For November 2017 Ars Magica writing challenge – I’m doing one spell a day.
Warmth of the Cozy Solar
Creo Ignem 15, R: Touch, D: Concentration, T: Individual
This room is provided a pleasant heat, granting the Superior Heating attribute to a lab (Cov p.114).
(Base 2 for warm to touch, +1 Touch, +2 Concentration, +2 size)
Device effect total 14 (+1 for 2 Uses/day, +3 trigger: sunrise/sunset)
This spell is part of the free new spells compendium for Ars Magica.